LONDON—A car collided Thursday with the gates of Downing Street in central London, where the British prime minister’s home and offices are located, setting off a rapid, intense security response at one of London’s most-fortified sites.
No one was injured and police said they were not treating the incident as terror-related. Police arrested a man on suspicion of criminal damage and dangerous driving, and local officers, rather than counterterrorism detectives, were handling the investigation.
