Emergency workers stand on a blocked street in Barcelona, Spain, Thursday, Aug. 17, 2017. A white van jumped up onto a sidewalk and sped down a pedestrian zone Thursday in Barcelona's historic Las Ramblas... (Associated Press) 
 
 BARCELONA, Spain (AP) — A van veered onto a promenade and barreled down the busy walkway in central Barcelona on Thursday, swerving back and forth as it mowed down pedestrians and turned a picturesque tourist destination into a bloody killing zone. Thirteen people were killed and 100 were injured, 15 of them seriously, in what authorities called a terror attack. 
 
 The late afternoon attack in the city's Las Ramblas district left victims sprawled in the historic street, spattered with blood or writhing in pain from broken limbs. Others were ushered inside shops by officers with their guns drawn or fled in panic, screaming and carrying young children in their arms. 
 
 "It was clearly a terror attack, intended to kill as many people as possible," Josep Lluis Trapero, a senior police official for Spain's Catalonia region told reporters late Thursday. 
 
 The Islamic State group claimed responsibility, saying in a statement on its Aamaq news agency that the attack was carried out by "soldiers of the Islamic State" in response to the extremist group's calls for followers to target countries participating in the coalition trying to drive it from Syria and Iraq. 
 
 Early Friday, Catalan police said they shot and killed five suspects in a seaside resort town south of Barcelona in response to a terrorist attack. They also said six civilians were injured in Cambrils but didn't immediately say how. The force is working on the theory that the Cambrils suspects are linked to the Barcelona attack, as well as to a Wednesday night explosion in the town of Alcanar in which one person was killed. 
 
 The Catalan regional government said citizens from 24 countries were among the people killed and injured during the Barcelona van attack. 
 
 Authorities said the dead included a Belgian and a Greek woman was among the injured. Australia confirmed three of its citizens were injured; two others were Taiwanese and one was from Hong Kong, according to their governments. Germany was investigating whether its citizens were among the dead or injured. 
 
 Spanish Prime Minister Mariano Rajoy called the killings a "savage terrorist attack" and said Spaniards "are not just united in mourning, but especially in the firm determination to beat those who want to rob us of our values and our way of life." 
 
 After the afternoon attack, Las Ramblas went into lockdown. Swarms of officers brandishing hand guns and automatic weapons launched a manhunt in the downtown district, ordering stores and cafes and public transport to shut down. 
 
 Several hours later authorities reported two arrests, one a Spanish national from Melilla, a Spanish-run Mediterranean seafront enclave in North Africa, and the other a Moroccan. They declined to identify them. 
 
 Trapero said neither of them was the van's driver, who remained at large after abandoning the van and fleeing on foot. The arrests took place in the northern Catalan town of Ripoll and in Alcanar, where a gas explosion in a house is being investigated for a possible connection. 
 
 Spanish public broadcaster RTVE and other news outlets named one of the detained as Driss Oukabir, a French citizen of Moroccan origin. RTVE reported said Oukabir went to police in Ripoll to report that his identity documents had been stolen. Various Spanish media said the IDs with his name were found in the attack van and that he claimed his brother might have stolen them. 
 
 Media outlets ran photographs of Oukabir they said police had issued to identify one of the suspects. The regional police told the Associated Press that they had not distributed the photograph. They refused to say if he was one of the two detained. 
 
 Barcelona is the latest European city where attackers used a vehicle as a weapon of terror against a popular tourist destination, after other deadly attacks in France, Germany, Sweden and Britain. 
 
 "London, Brussels, Paris and some other European cities have had the same experience. It's been Barcelona's turn today," Carles Puigdemont, president of Catalonia's government. 
 
 Thursday's bloodshed was Spain's deadliest attack since 2004, when al-Qaida-inspired bombers killed 192 people in coordinated assaults on Madrid's commuter trains. In the years since, Spanish authorities have arrested nearly 200 jihadists. The only deadly attacks were bombings claimed by the Basque separatist group ETA that killed five people over the past decade but it declared a cease-fire in 2011. 
 
 "Unfortunately, Spaniards know the absurd and irrational pain that terrorism causes. We have received blows like this in recent years, but we also that terrorists can be beaten," Rajoy said. 
 
 During the search for the perpetrators, troopers shot and killed a man who was in a vehicle that hit two officers at a traffic blockade on the outskirts of Barcelona. But Trapero said the driver's actions were not linked to the van attack. 
 
 Las Ramblas cuts through the center of Barcelona and is one of the city's top tourist destinations. It is a wide avenue of stalls and shops with a pedestrian-only walkway in the center while cars can travel on either side. 
 
 A taxi driver who witnessed the attack, Oscar Cano, said the white van suddenly jumped the curb and sped down the central pedestrian area at a high speed for about 500 yards (457 meters), veering from side to side as it targeted people. 
 
 "I heard a lot of people screaming and then I saw the van going down the boulevard," another witness, Miguel Angel Rizo, told The Associated Press. "You could see all the bodies lying through Las Ramblas. It was brutal. A very tough image to see." 
 
 Jordi Laparra, a 55-year-old physical education teacher and Barcelona resident, said it initially looked like a terrible traffic accident. 
 
 "At first I thought it was an accident, as the van crashed into 10 people or so and seemed to get stuck. But then he maneuvered left and accelerated full speed down the Ramblas and I realized it was a terrorist attack," Laparra said. "He zigzagged from side to side into the kiosks, pinning as many people as he could, so they had no escape." 
 
 Carol Augustin, a manager at La Palau Moja, an 18th-century former palace on Las Ramblas that now houses offices and a tourism center, said the van passed in front of the building. 
 
 "People started screaming and running into the office. It was such a chaotic situation. There were families with children," she said. 
 
 Dutch visitor Tamara Jurgen said she and a friend were inside a clothing store steps from the scene and were kept inside until it was safe to leave. 
 
 "We were downstairs when it happened and everyone was screaming and running. We had to run up to the roof and throw our bags over a wall," Jurgen said. "We were all together along this wall and we were scared we were going to have to jump." 
 
 Barcelona Mayor Ada Colau announced a minute of silence to be held Friday in Barcelona's main square "to show that we are not scared." The prime minister announced three days of national mourning. 
 
 Leaders around the world offered their support and condolences to Barcelona after the attack. 
 
 President Donald Trump tweeted that the U.S. condemned the attack and "will do whatever is necessary to help. Be tough & strong, we love you!" 
 
 British Prime Minister Theresa May said the U.K. "stands with Spain against terror" while French President Emmanuel Macron tweeted: "All my thoughts and solidarity from France for the victims of the tragic attack in Barcelona. We will remain united and determined." 
 
 Spain has been on a security alert one step below the maximum since June 2015 following attacks elsewhere in Europe and Africa. 
 
 Cars, trucks and vans have been the weapon of choice in multiple extremist attacks in Europe in the last year. 
 
 The deadliest targeted Bastille Day revelers in Nice, France, in July 2016, killing 86 people. In December 2016, 12 people died after a driver used a hijacked truck to drive into a Christmas market in Berlin. 
 
 Multiple attacks occurred in London this year. A man in a rented SUV plowed into pedestrians on Westminster Bridge, killing four people before he ran onto the grounds of Parliament and stabbed an unarmed police officer to death in March. 
 
 Four other men drove onto the sidewalk of London Bridge, unleashing a rampage with knives that killed eight people in June. Another man also drove into pedestrians leaving a London mosque later in June. 
 
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 Hatton reported from Lisbon. Associated Press writers Ciaran Giles in Madrid, Albert Stumm in Barcelona and Alan Clendenning in Phoenix also contributed to this report. 
 
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 This version corrects that the van veered onto a promenade, not a sidewalk. ||||| These crawls are part of an effort to archive pages as they are created and archive the pages that they refer to. That way, as the pages that are referenced are changed or taken from the web, a link to the version that was live when the page was written will be preserved.Then the Internet Archive hopes that references to these archived pages will be put in place of a link that would be otherwise be broken, or a companion link to allow people to see what was originally intended by a page's authors.The goal is to fix all broken links on the web . Crawls of supported "No More 404" sites. ||||| BARCELONA (Reuters) - The driver of the van that plowed into crowds in Barcelona, killing 13 people, may still be alive and at large, Spanish police said on Friday, denying earlier media reports that he had been shot dead in a Catalan seaside resort. 
 
 Josep Lluis Trapero, police chief in Spain’s northeastern region of Catalonia, said he could not confirm the driver was one of five men killed. 
 
 “It is still a possibility but, unlike four hours ago, it is losing weight,” he told regional TV. 
 
 The driver abandoned the van and fled on Thursday after speeding along a section of Las Ramblas, the most famous boulevard in Barcelona, leaving a trail of dead and injured among the crowds of tourists and local residents thronging the street. 
 
 (For a graphic on Barcelona crash, click tmsnrt.rs/2fOJ9Sm) 
 
 It was the latest of a string of attacks across Europe in the past 13 months in which militants have used vehicles as weapons - a crude but deadly tactic that is near-impossible to prevent and has now killed nearly 130 people in France, Germany, Britain, Sweden and Spain. 
 
 Suspected jihadists have been behind the previous attacks. Islamic State said the perpetrators of the latest one had been responding to its call to target countries involved in a U.S.-led coalition against the Sunni militant group. 
 
 Hours after the van rampage, police shot dead five people in the Catalan resort of Cambrils, 120 km (75 miles) down the coast from Barcelona, after they drove their car at pedestrians and police officers. 
 
 The five assailants had an ax and knives in their car and wore fake explosive belts, police said. A single police officer shot four of the men, Trapero said. 
 
 A Spanish woman was killed in the Cambrils incident, while several other civilians and a police officer were injured. 
 
 Trapero had earlier said the investigation was focusing on a house in Alcanar, southwest of Barcelona, which was razed by an explosion shortly before midnight on Wednesday. 
 
 Police believe the house was being used to plan one or several large-scale attacks in Barcelona, possibly using a large number of butane gas canisters stored there. 
 
 However, the apparently accidental explosion at the house forced the conspirators to scale down their plans and to hurriedly carry out more “rudimentary” attacks, Trapero said. 
 
 FOUR ARRESTS 
 
 Police have arrested four people in connection with the attacks - three Moroccans and a citizen of Spain’s North African enclave of Melilla, Trapero said. They were aged between 21 and 34, and none had a history of terrorism-related activities. 
 
 Another three people have been identified but are still at large. Spanish media said two of them may have been killed by the blast in Alcanar while one man of Moroccan origin was still sought by the police. 
 
 People gather around an impromptu memorial a day after a van crashed into pedestrians at Las Ramblas in Barcelona, Spain August 18, 2017. REUTERS/Sergio Perez 
 
 Police in France are looking for the driver of a white Renault Kangoo van that may have been used by people involved in the Barcelona attack, a French police source told Reuters. 
 
 WORST SINCE 2004 
 
 It was the deadliest attack in Spain since March 2004, when Islamist militants placed bombs on commuter trains in Madrid, killing 191 people. 
 
 Of 126 people injured in Barcelona and Cambrils, 65 were still in hospital and 17 were in a critical condition. The dead and injured came from 34 countries, ranging from France and Germany to Pakistan and the Philippines. 
 
 U.S. Secretary of State Rex Tillerson said an American citizen was confirmed dead, and Spanish media said several children were killed. 
 
 As Spain began three days of mourning, people returned to Las Ramblas, laying flowers and lighting candles in memory of the victims. Rajoy and Spain’s King Felipe visited Barcelona’s main square nearby to observe a minute’s silence. 
 
 Defiant crowds later chanted “I am not afraid” in Catalan. 
 
 Foreign leaders voiced condemnation and sympathy, including French President Emmanuel Macron, whose nation has suffered some of Europe’s deadliest recent attacks. 
 
 German Chancellor Angela Merkel, speaking after media reports that some Germans were among those killed, said Islamist terrorism “can never defeat us” and vowed to press ahead with campaigning for a general election in Germany in September. 
 
 Slideshow (21 Images) 
 
 King Mohammed VI of Morocco sent his condolences to Spain. 
 
 U.S. President Donald Trump, speaking by phone with Spanish Prime Minister Mariano Rajoy on Friday, pledged the full support of the United States in investigating the attacks in Barcelona and Cambrils and bringing the perpetrators to justice. 
 
 In a message to the cardinal of Barcelona, Pope Francis said the attack was “an act of blind violence that is a grave offense to the Creator”. 
 
 Polish Interior Minister Mariusz Blaszczak said the attack showed the European Union’s system of migrant relocation was wrong. “It is dangerous. Europe should wake up,” he said. “We are dealing here with a clash of civilisations.”
– Police in Spain say they killed five terror suspects Thursday night during a second terrorist attack hours after a van plowed into pedestrians in Barcelona, killing 13 people and injuring more 100. Police have released few details on the suspects killed in the town of Cambrils, south of Barcelona, though there are unconfirmed reports that they were wearing explosive belts. Authorities say the Cambrils suspects deliberately drove an Audi A3 into pedestrians before encountering a police patrol. Police say six bystanders and one police officer were also injured, the Guardian reports. Two other suspects have been arrested in connection with the Barcelona attack, authorities say, though the van's driver, who fled on foot after creating scenes of horror on a pedestrian walkway, is still believed to be at large. Police say they believe the Cambrils attack was linked to the Barcelona attack. ISIS has claimed responsibility for Spain's deadliest terrorist attack since 2004, saying it was carried out by "soldiers of the Islamic State," the AP reports. Authorities say that before the Barcelona attack, a person was killed in a blast in Alcanar, a town southwest of the city, where people in a house were apparently preparing explosives, Reuters reports.