In pictures: London attack aftermathPublished24 March 2017Shareclose panelShare pageCopy linkAbout sharingImage source, Jonathan Brady/PA Image caption, The flag above the Houses of Parliament flew at half mast following Wednesday's attack on Westminster that left five people dead, including the attacker, and many injured.Image source, Jonathan Brady/PA WireImage caption, The attacker, identified as Khalid Masood, 52, drove a car along the pavement on Westminster Bridge, knocking down pedestrians, before killing a policeman in the grounds of Parliament.Image source, Will Oliver / EPAImage caption, Members of the public brought flowers to lay outside New Scotland Yard in tribute to PC Keith Palmer.Image source, Gareth Fuller/PA Image caption, Others left them near to the scene of the attack in Westminster.Image source, PAImage caption, Members of Parliament held a minute's silence in Westminster on Thursday morning.Image source, Jonathan Brady/PA Image caption, And a silence was also held outside New Scotland Yard.Image source, Dominic Lipinski/PA Image caption, Officers continued to search the area for forensic evidence.Image source, Jack taylor / AFPImage caption, Prime Minister Theresa May said there was no reason to believe there would be imminent further attacks. She also said the UK's threat level was set at severe, and would not change.Image source, Adrian Dennis / AFPImage caption, Westminster Bridge reopened less than 24 hours after the attack.Image source, Darren Staples / ReutersImage caption, Armed officers remained very visible around the area.Image source, Jack Taylor/Getty ImagesImage caption, Members of the British Transport Police paused for a moment after laying floral tributes on Westminster Bridge.Image source, Daniel Leal-Olivas / AFPImage caption, A man pauses in front of floral tributes laid in honour of PC Keith Palmer at the National Police Memorial in Westminster. In a statement, the PC's family said he was a "friend to everyone who knew him".Image source, PAImage caption, People gathered in London's Trafalgar Square on Thursday to pay their respects to those who were injured and killed in the attack.Image source, ReutersImage caption, The candlelit vigil in Trafalgar Square was also marked by speeches, including one by Mayor of London Sadiq Khan, who described the city as "full of amazing people from all backgrounds, and when Londoners face adversity we always pull together".Image source, EPAImage caption, On Friday, inter-faith leaders held a vigil in the grounds of Westminster Abbey.Image source, Getty ImagesImage caption, The Archbishop of Canterbury, the Most Reverend Justin Welby, is seen during the vigil embracing Sheikh Khalifa Ezzat, chief Imam and head of religious affairs at the London Central Mosque.More on this storyBritish-born attacker 'known to MI5'Published23 March 2017As it happened: Coverage of London attacksPublished22 March 2017In pictures: Terror attack on WestminsterPublished23 March 2017