LONDON (AP) — 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. Prime Minister Rishi Sunak was in his office at the time of the crash, which revived memories of attacks on London's government district....