A car has collided with the front gates of Downing Street, where Prime Minister Rishi Sunak's office and residence is based, London police say, adding a man had been arrested on suspicion of dangerous driving.
"At around 16:20hrs 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.
"There are no reports of any injuries."
Police said inquiries were ongoing.
A Reuters witness said there was a small vehicle outside the gate, with its doors and trunk open.
BBC television footage showed the vehicle approaching the gate at a low speed.
Sunak's office declined to comment.
Police initially put in place a cordon blocking traffic along Whitehall, a main road running past Downing Street where several government departments are based.
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