Stabbing incident on Tokyo train leaves 4 injured, suspect arrested

At least four people were injured in a stabbing incident on a train in the Japanese capital city late Wednesday, according to local media.

Public broadcaster NHK reported that a woman was wielding a knife on a train that had stopped at JR Akihabara Station in Tokyo.

"So far, four people have been injured and taken to the hospital," the broadcaster said.

Metropolitan Police arrested a suspect in possession of a knife at the station, and police have launched an investigation into the incident.