(CNN) The shooting at the Tree of Life synagogue in Pittsburgh -- in which the death toll now stands at 11 -- is believed to be the deadliest attack on the Jewish community in the history of the US, the Anti-Defamation League said. 
 
 "It is simply unconscionable for Jews to be targeted during worship on a Sabbath morning, and unthinkable that it would happen in the United States of America in this day and age," the Jewish organization, which tracks anti-Semitic incidents, said in a statement 
 
 Until now, the deadliest attack specifically targeting Jews happened in 1985 when a Seattle lawyer Charles Goldmark was bludgeoned and stabbed to death, along with his wife, Annie, and their two sons, the ADL said. David Morse Rice, a drifter and unemployed steelworker, was found guilty of those killings. 
 
 Anti-Semitic incidents and online harassment rising, ADL says 
 
 The ADL said the attack Saturday comes at a time when both anti-Semitic incidents and online harassment are on the rise. 
 
 Jewish people were the victims of more reported hate crimes than any other religious minority in 2016, according to the most recent year of FBI statistics. 
 
 In that year , 684 anti-Jewish incidents were reported. That's more than the rest of religiously motivated hate crimes combined, records reveal. 
 
 Tracking such crimes can be nuanced and difficult. The motivations aren't always clear, and the crimes are often not reported by victims and police. 
 
 Robert Bowers, 46, faces 29 charges in all, including 11 counts of using a firearm to commit murder and multiple counts of two hate crimes: obstruction of exercise of religious beliefs resulting in death and obstruction of exercise of religious beliefs resulting in bodily injury to a public safety officer. 
 
 "The crimes of violence are based upon the federal civil rights laws prohibiting hate crimes," US Attorney Scott W. Brady and Bob Jones, FBI special agent in charge of Pittsburgh office, said in a statement. 
 
 The FBI, which calls an offense a hate crime when there's an added element of bias, is leading the investigation into the attack. 
 
 Bowers told a SWAT officer that he wanted all Jews to die and also that Jews were committing genocide to his people, according to CNN affiliate WTAE, citing a police criminal complaint filed Saturday evening in Pittsburgh. 
 
 Last year, The Anti-Defamation League reported, anti-Semitic incidents rose almost 60% , the largest single-year increase on record. 
 
 The ADL found 1,986 cases of harassment, vandalism or physical assaults against Jewish people or institutions in 2017. It found 1,267 in 2016. 
 
 "We're definitely in a period in our country where there's a general decrease in civility," Aryeh Tuchman, associate director for the ADL's Center on Extremism, said when the ADL released its findings in February. "People in the past who have tamped down their anti-Semitic proclivities may feel more liberated to express them than before." 
 
 'An escalating scourge of hate-based violence' 
 
 In a statement condemning the Pittsburgh attack, the Rabbinical Assembly said the shooting was a reminder that anti-Semitism "is on the rise in America at a rate unprecedented in decades." 
 
 "This vicious hate crime, perpetrated against innocent people at prayer is but the latest in an escalating scourge of hate-based violence in America," it said. 
 
 Moishe Bane, president of the Orthodox Union, expressed heartbreak for "the senseless murder of our fellow Jews and all victims of vicious hate crimes." 
 
 "We condemn the dangerous rhetoric that foments such senseless violence and we stand with the Tree of Life Congregation and the whole Pittsburgh community at this terrible time," he said. 
 
 Rabbi Elazar Muskin, president of the Rabbinical Council of America said "fringe elements of society" had become "emboldened by speech which is often disrespectful and hateful." 
 
 FBI says reports of hate crimes have increased 
 
 The FBI showed an overall increase in reported hate crimes of more than 4% from 2015 to 2016. 
 
 Anti-Islamic (anti-Muslim) crimes accounted for 307, up 19% from the previous year. That was the biggest percentage rise. 
 
 The FBI also tracks religiously motivated crimes against Eastern Orthodox Christians, other Christians, Hindus, Sikhs, Mormons, Jehovah's Witnesses and Buddhists. 
 
 In race categories, African Americans were targeted the most -- in about half of the reported 3,489 racially driven incidents in 2016. 
 
 The FBI said 1,200 incidents were motivated by bias against victims based on sexual orientation or gender identity. ||||| The FBI investigates after an active shooter situation at the Tree of Life Congregation on Saturday, Oct. 27, 2018, in the Squirrel Hill section of Pittsburgh. A shooter opened fire at the synagogue,... (Associated Press) 
 
 The FBI investigates after an active shooter situation at the Tree of Life Congregation on Saturday, Oct. 27, 2018, in the Squirrel Hill section of Pittsburgh. A shooter opened fire at the synagogue, killing multiple people and injuring others in one of the deadliest attacks on Jews in U.S. history.... (Associated Press) 
 
 PITTSBURGH (AP) — The Latest on a deadly shooting at a Pittsburgh synagogue (all times local): 
 
 7 a.m. 
 
 Police say the suspect in the deadly mass shooting at a Pittsburgh synagogue told officers that Jews were committing genocide and that he wanted them all to die. 
 
 Pittsburgh police said in an arrest affidavit made public early Sunday that Robert Gregory Bowers killed eight men and three women in the Tree of Life Synagogue before a tactical police team tracked him down and shot him. 
 
 A Pittsburgh police officer says in the warrant that Bowers was being treated for his injuries when he said Jews were "committing genocide to his people." 
 
 Bowers is charged with 11 counts of criminal homicide, six counts of aggravated assault and 13 counts of ethnic intimidation. 
 
 The police affidavit says calls began coming in to 911 just before 10 a.m. Saturday, reporting "they were being attacked." 
 
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 12:30 a.m. 
 
 A gunman who expressed hatred of Jews exploited a vulnerability common in so many houses of worship across the country — doors that are unlocked for worship — to target a Pittsburgh synagogue. 
 
 Officials say Robert Bowers was armed with a rifle and three handguns when he walked inside the Tree of Life synagogue during Sabbath services Saturday morning and opened fire, killing 11 people and wounding six in what is believed to be the deadliest attack on Jews in U.S. history. 
 
 Police swarmed the building and traded gunfire with the gunman, who was shot multiple times but survived. 
 
 Four police officers are among the wounded. 
 
 Bowers faces 29 federal counts, including weapons offenses and hate crimes. 
 
 Law enforcement officials plan to discuss the massacre at a news conference Sunday morning. ||||| A crowd gathers at the intersection of Murray Ave. and Forbes Ave. in the Squirrel Hill section of Pittsburgh during a memorial vigil for the victims of the shooting at the Tree of Life Synagogue where... (Associated Press) 
 
 A crowd gathers at the intersection of Murray Ave. and Forbes Ave. in the Squirrel Hill section of Pittsburgh during a memorial vigil for the victims of the shooting at the Tree of Life Synagogue where a shooter opened fire earlier in the day Saturday, Oct. 27, 2018. (AP Photo/Gene J. Puskar) (Associated Press) 
 
 PITTSBURGH (AP) — During the week, anyone who wanted to get inside Pittsburgh's Tree of Life synagogue had to ring the doorbell and be granted entry by staff because the front door was kept locked. Not so on Saturday — the Jewish Sabbath — when the building was open for worship. 
 
 A gunman who had expressed hatred of Jews exploited that vulnerability, so common in so many houses of worship across the country, in a singularly horrific way. 
 
 Armed with a rifle and three handguns, Robert Bowers walked into the synagogue during Saturday morning worship and began shooting, killing 11 and wounding six before police took him into custody, officials said. It was the deadliest attack on Jews in U.S. history, according to the leader of the Anti-Defamation League. 
 
 Bowers traded gunfire with police and was shot multiple times but survived. He was charged late Saturday with 29 federal counts, including weapons offenses and hate crimes. Law enforcement officials planned to discuss the massacre at a news conference Sunday morning. 
 
 Four police officers were among the wounded. 
 
 The nation's latest mass shooting drew condemnation and expressions of sympathy from politicians and religious leaders of all stripes. With the midterm election just over a week away, it also reignited a longstanding and bitter debate over guns. President Donald Trump said the outcome might have been different if the synagogue "had some kind of protection" from an armed guard, while Pennsylvania's Democratic Gov. Tom Wolf, up for re-election, noted that once again "dangerous weapons are putting our citizens in harm's way." 
 
 Calling the shooting an "evil anti-Semitic attack," Trump ordered flags at federal buildings throughout the U.S. to be flown at half-staff in respect for the victims. He said he planned to travel to Pittsburgh, but offered no details. 
 
 In the city, thousands gathered for a vigil Saturday night. Some blamed the slaughter on the nation's political climate. 
 
 "When you spew hate speech, people act on it. Very simple. And this is the result. A lot of people dead. Senselessly," said Stephen Cohen, co-president of New Light Congregation, which rents space at Tree of Life. 
 
 The shooting raised immediate alarm in Jewish communities around the country. Authorities in New York City, Los Angeles, Chicago, Houston, Philadelphia and other cities sent extra patrols to synagogues and other houses of worship. 
 
 Little was known about Bowers, who had no apparent criminal record but who is believed to have expressed virulently anti-Semitic views on social media. Authorities said it appears he acted alone. 
 
 Worshippers "were brutally murdered by a gunman targeting them simply because of their faith," said Bob Jones, head of the FBI's Pittsburgh office, though he cautioned the shooter's full motive was not yet known. 
 
 Scott Brady, the chief federal prosecutor in western Pennsylvania, pledged that "justice in this case will be swift and it will be severe." 
 
 It wasn't clear if Bowers had an attorney to speak on his behalf. 
 
 The gunman targeted a building that housed three separate congregations, all of which were conducting Sabbath services when the attack began just before 10 a.m. in the tree-lined residential neighborhood of Squirrel Hill, about 10 minutes from downtown Pittsburgh and the hub of Pittsburgh's Jewish community. 
 
 The synagogue door was unlocked on the Sabbath "because people are coming for services, and the bell would be ringing constantly. So they do not lock the door, and anybody can just walk in," said Marilyn Honigsberg, administrative assistant for New Light. "And that's what this man did." 
 
 Michael Eisenberg, the immediate past president of the Tree of Life, said synagogue officials had not gotten any threats that he knew of before the shooting. But he said security was a concern, and the synagogue had started working to improve it. 
 
 "You know, you're always worried that something would happen," said Myron Snider, head of the cemetery committee for New Light. Snider just got out of the hospital on Thursday and missed Saturday's service. 
 
 "But you never dream that it would happen like this," Snider added. "Just never ever dream that it would happen like this." 
 
 Zachary Weiss, 26, said his father, 60-year-old Stephen Weiss, was inside the synagogue but was unharmed. Weiss said his father told him that he and Tree of Life's rabbi helped congregants take shelter and follow the active shooter response training they'd received months earlier. Stephen Weiss made it out of the building and used a janitor's cellphone to call his family at home. 
 
 The attack, his son vowed, "will not define our congregation and will not define our city." 
 
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 Breed reported from Raleigh, North Carolina, and Lauer reported from Philadelphia. Contributing to this report were Associated Press writers Mark Gillispie and Gene Puskar in Pittsburgh, Eric Tucker and Michael Balsamo in Washington, Marc Levy in Harrisburg, Michael Kunzelman in Silver Spring, Maryland, and Michael Rubinkam in northeastern Pennsylvania. 
 
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 For AP's complete coverage of the Pittsburgh synagogue shootings: https://www.apnews.com/Shootings
– The Anti-Defamation League says the shooting at the Tree of Life synagogue in Pittsburgh is thought to be the deadliest attack specifically targeting Jews ever in the US—by far. CNN reports the previous attack to have that label occurred in 1985, when Seattle lawyer Charles Goldmark, his wife, and two sons were killed. (The Washington Post notes it "was actually a case of mistaken religious identity," as the family was not Jewish.) The toll in Saturday's shooting stands at 11. The AP reports police on Sunday said the victims were eight men and three women. In an arrest affidavit made public, police say that while treating alleged shooter Robert Gregory Bowers for injuries he sustained after being shot by police, he said Jews were "committing genocide to his people" and that he wanted them all to die. The AP separately reports on a "vulnerability" the shooter took advantage of: an unlocked door. While the Tree of Life synagogue required guests to ring a bell to gain access during the week, on the Jewish Sabbath the building was open to all guests for Shabbat services. The Post quotes the FBI special agent in charge as saying it was "the most horrific crime scene I’ve seen in 22 years." Federal hate crime charges were filed against Bowers on Saturday: 29 charges in all, including 11 counts of using a firearm to commit murder. The Pittsburgh Post-Gazette reports Pittsburgh police also filed charges on Saturday: 11 counts of criminal homicide, six counts of attempted homicide, six counts of aggravated assault, and 13 counts of ethnic intimidation. (Read what President Trump had to say about the shooting here.)