Thefts began in September
Holding lots at Fiat Chrysler's Jefferson North Assembly plant in Detroit continue to be hit by thieves.
Police say an older minivan was used to crash through the gate at the lot near Conner Avenue and multiple vehicles were stolen.
A spokesperson for the automaker says they are conducting an inventory to determine how many vehicles were stolen.
The Jefferson North plant builds the Jeep Grand Cherokee and the Dodge Durango.
The lots around the plant hold several different models for shipping by truck and rail.