美国有线新闻 CNN 伦敦发生恐袭 嫌犯或为单人行动（在线收听）

CARL AZUZ, CNN 10 ANCHOR: Hi, everyone. I'm Carl Azuz. Thank your watching CNN 10 this Thursday.

We're starting with the report about an apparent terrorist attack in the capital of the United Kingdom. It began yesterday afternoon. An attacker whom police had not named by the time we produce this show reportedly drove a car in the crowds of people on London's Westminster Bridge. Police say several civilians and three police officers were hit. The assailant then crashed and got out of the car, ran through the gates of parliament and stabbed and killed a police officer there before being shot by other police.

Officials say at least three people were killed, in addition to the attacker and at least 20 others were wounded.

Parliament is the heart of political life in Britain and Prime Minister Theresa May was in the building when the attack occurred. She was quickly evacuated while the building was placed on lockdown and lawmakers and visitors were moved to a central room.

British police believe the attacker acted alone. They've opened a full counterterrorism investigation.