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An investigation is under way after four people died and around 40 were injured in an attack in Westminster in central London on Wednesday afternoon. The police have said they are treating the attack as terrorism. Join us for further developments and reaction.
At least four people have died and 20 have been injured in an attack in Westminster in central London. The attacker drove a car into people on Westminster Bridge before entering the grounds of the Houses of Parliament. The man, armed with knives, then stabbed and killed a police officer before being shot dead.
FBI director James Comey was questioned for more than six hours by the House intelligence committee on the bureau's investigation into Russia's attempts to interfere in last year's US presidential election. He is testified alongside the NSA director, Admiral Michael Rogers.
Mr Comey, who came under fire during the election campaign for his handling of Democratic candidate Hillary Clinton's email server probe, was also questioned about allegations that the Obama administration wiretapped Trump Tower.