NILES, MI - Four people on board an Amtrak train bound for Port Huron have been stabbed. One person is in custody.\r\n\r\n\r\nThe suspect is Michael Darnell Williams, a 44-year-old man, from Saginaw, MI.\u00a0 He is currently being held at the Berrien County Sheriff\u2019s Department on charges of assault with intent to murder.\r\nPolice are trying to figure out what motivated the attack.\r\nPolice received the call about the incident at 7 p.m. while\u00a0the train was parked at a station located at N 6th Street and Pokagon in Niles, MI.\r\nWhen police arrived at the Niles train station, the attack was in progress. Police stormed the train and used a Taser on the suspect before taking him into custody.\r\n\r\n\r\n\r\nThe four people were injured but no fatalities were reported, according to a police spokeswoman.\r\nThe victims included the train's conductor, a female passenger and two male passengers.\u00a0 All victims are in stable condition.\u00a0 Two people were\u00a0 hospitalized at Lakeland Healthcare Hospital in Niles.\r\nSeveral from Michigan were on board.\u00a0 No information if any of those individuals were victims.\r\nAmtrak said in a statement Friday night that the incident took place on board Train #364 at the Niles Train Station. The train was operating on the Blue Water Service line, and was en route from Chicago to Port Huron, Mich.\r\nAmtrak says it is arranging alternate transportation for the 172 passengers on board.\r\n\r\nThe Niles City Police Dept. and Amtrak Police are investigating.