Niles City Police Chief James Millin reports that a total of four people were injured in the stabbing on board the Amtrak Bluewater Train, which travels from Chicago to Port Huron daily.

Millin said an older gentleman who was stabbed in the chest was taken to the operating room in serious condition, and an additional three people were injured, including the conductor of the train.

Police responded to a call  from Amtrak staff saying that a passenger had become agitated. Police responded, tazed the assailant and took him into custody.