Armed police arrested one man after a car crashed into the gates of the UK prime minister's Downing Street office and residence in central London on Thursday, Scotland Yard said. "At around 16:20 (1520 GMT) a car collided with the gates of Downing Street on Whitehall. Armed officers arrested a man at the scene on suspicion of criminal damage and dangerous driving," police said in a statement. No injuries were reported and police added that enquiries were ongoing.