Security will be beefed up for Anzac Day after five teenagers who were plotting an Islamic State-inspired terror attack were arrested in pre-dawn raids. Prime Minister Tony Abbott promised there would be a strong police presence across Australia to keep the public safe on April 25. Two teenagers remain in custody following raids in Melbourne's south-east after police were tipped off about an imminent attack on Anzac Day ceremonies. Scroll down for video . Prime Minister Tony Abbott has urged people to continue with their Anzac Day plans, adding security would be ramped up on the day . Sevdet Besim, 18, has been remanded in custody after appearing briefly in Melbourne Magistrates Court on Saturday. Besim, from Hallam, has been charged with conspiring to commit terrorist acts. Another 18-year-old, from Hampton Park, is also expected to be charged with offences relating to preparing for a terrorist act and remains in custody. Mr Abbott has urged Australians not to be deterred by the alleged terror plot and continue with their plans to attend centenary commemorations. Sevdet Besim has been charged in relation to an alleged terror plot targeting Anzac Day ceremonies . One of the houses in Hallam - in Melbourne's south-east - that were raided in the early hours of Saturday morning . Two cars were parked outside the Hallam house on Saturday following police raids in relation to an alleged terror plot . 'The best thing you can do in the face of those who would do us harm is to live your life normally,' Mr Abbott said. He also praised the professionalism of police conducting the early morning raids in metropolitan Melbourne. There were no other specific threats to Anzac Day events in other cities, but Mr Abbott said there would be a strong police presence across Australia nonetheless. Security at the Gallipoli ceremony was a matter for the Turkish government, but Australia had been co-operating in the lead up to the event. Four thousand Turkish police and security personnel would be deployed on the peninsula. 'I want to assure people that everything authorities can do to keep you safe is being done,' Mr Abbott said. Australian Prime Minister Tony Abbott (right) and Australian Federal Police Deputy Commissioner Michael Phelan (left) address a media conference in Sydney on Saturday . There were no other specific threats to Anzac Day events in other cities, but Mr Abbott said there would be a strong police presence across Australia nonetheless . Anzac Day ceremonies will take place across the country on April 25 to celebrate 100 years since the landing at Gallipoli . Federal Police Deputy Commissioner Michael Phelan lamented that radicalised people could harm others even with rudimentary weapons. 'All you need these days is a knife, a flag and a camera and one can commit a terrorist act,' he told reporters. Deputy Commissioner Phelan acknowledged police did not have the luxury of time in dealing with potential terrorism plots, unlike in drug investigations. They had to act as soon as they thought the public were at risk. Three of the five men who arrested after the raids were released following questioning for most of Saturday. It is expected one of them - a 18-year-old from Narre Warren - will be charged on summons with weapons offences. Two other Narre Warren men, aged 18 and 19, have been released pending further enquiries. Dubbed Operation Rising, more than 200 heavily-armed officers swooped on the Melbourne's south-east about 3am on Saturday, executing search warrants in Narre Warren, Hampton Park, Hallam and Eumemmerring, arresting the men and seizing knives and swords. Authorities have refused to give details of the alleged plot but say police at Anzac activities around Melbourne were the immediate target.
Prime Minister Tony Abbott promised a strong police presence on April 25 . It comes after five teenagers were arrested in pre-dawn raids on Saturday . They were arrested over an alleged terror plot targeting Anzac Day events . Mr Abbott urged public not to be deterred and continue with their plans .