The Metro Police Authority of Genesee County is looking for the driver of a dark-colored Chevrolet HHR that hit five people Tuesday on the United Auto Workers picket line outside of General Motors Co.'s Flint Processing Center in Swartz Creek, Police Chief Matthew Bade said Tuesday.

Officers were called to the plant on Bristol Road about 4 p.m. after a driver who was leaving the facility struck the five individuals when trying to leave and then drove off. Only minor injuries were reported at the scene.

The incident is now being investigated as a hit-and-run, Bade said. "The driver left the area and we're working to identify that person now," he said.