Interim Brockton Police Chief Robert Hayden was hit by a car while riding a bicycle in Hingham Sunday afternoon, Hingham police said.
Hayden was taken to South Shore Hospital, but the extent of his injuries were not known Sunday night, Sergeant Steven Dearth said.
He was hit on Route 228 near Fisher Street about 3:50 p.m., Dearth said. The crash was under investigation Sunday night and no charges had been filed, police said.
At 71, Hayden was named to head the department in January while he was fighting cancer, the Globe reported at the time. He also used to lead the force in Lawrence and is a 28-year veteran of the Boston Police Department.