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NEW: State police: The cruiser was shot, crashed, then caught fire

NEW: The suspect is a white male who fired from a dark pickup truck, police say

State police say they don't immediately know of any injuries

CNN  — 

A police cruiser in Millis, Massachusetts, caught fire after being shot at Wednesday, the Massachusetts State Police said.

The police cruiser was out in Millis around 3 p.m. when it was struck by gunfire, after which it crashed and caught fire, according to state police.

That law enforcement agency added that it was not immediately aware of any injuries.

Police believe the suspected gunman was a white male who fired from a dark-colored pickup truck.

A Massachusetts State Police helicopter was being used to survey the area to help look for the suspect, while detectives, fire investigators and other law enforcement specialists from various agencies have also been sent to the scene.

Millis is a town of about 8,000 people located about 25 miles southwest of Boston.