Illinois state police and Boone County sheriff's police will be helping Belivdere police patrol the sprawling auto plant Thursday morning.
Chrysler officials say they are also investigating possible vandalism at the assembly plant.
Police patrol Chrysler plant after threats
BELVIDERE
Police would not give details into the threats but they suspect it may be connected to the shutdown of the third shift at the plant. More than a thousand workers will lose their jobs once the third shift ends Friday.
