GRASS LAKE TOWNSHIP, Mich. (AP) _ A pickup truck whose driver apparently didn't see an Amtrak passenger train coming was hit Saturday and pushed a mile along the tracks before the train came to a stop.

The truck driver was critically injured and four others suffered minor injuries.

``The eyewitness said he just didn't see it,'' Sheriff's Deputy Gary Teske said of the truck driver. ``The train hit it and it just exploded.''

Roger Gould was airlifted to the University of Michigan Medical Center after the wreck Saturday afternoon and was in critical condition. His age wasn't immediately available. He was the only person in the truck.

The train's engineer and three of the 119 passengers on the Detroit-to-Chicago train were taken to a local hospital for minor injuries.

The train was about 80 miles west of Detroit when it slammed into the truck, which was carrying a load of corn. Corn went flying when the train and truck collided.