Eastbound I-94 is closed in Port Huron Township because of a serious accident involving three semis.
The road is closed at Water Street.
We're told one semi rear-ended a second one.
Video from Chopper 7 shows one of the semi cabs has been ripped right off the frame.
The freeway is expected to be closed for several hours while police investigate.
Stay with 7 Action News and WXYZ.com for the latest on this breaking news.