Fight onboard an Amtrak train ends with a stabbing

FRESNO, Calif. (KFSN) -- Authorities are investigating a stabbing on an Amtrak passenger train. The Amtrak train involved was number 714.

It was on its way from Antioch to Stockton, and eventually Fresno, when the violence broke out. As a result, the train was delayed about 45 minutes.

Witnesses tell Action News one man stabbed another man in self-defense. The conductor locked the attacker in a bathroom. There is no word yet on a motive.

We'll have more information when it becomes available.