A man with a knife stabbed at least 10 passengers on a commuter train in Tokyo and was arrested by police after fleeing, fire department officials and news reports said.

NHK public television said one passenger was seriously injured. It said the suspect left his knife behind as he fled and was later arrested in Tokyo. The Japanese capital is currently hosting the Olympics, which end on August 8. The Tokyo Fire Department said nine of the 10 injured passengers were taken to nearby hospitals, while the tenth was able to walk away. All of those injured were conscious, fire department officials said.