Cleveland ? Police in northeast Ohio were looking for a buffalo that wandered away from its pasture and caused a car accident.

Two other buffalo that escaped along with it were shot and killed after they were involved in a separate car accident, resulting in the injury of a woman, authorities said. A 7-month-old buffalo calf rammed a police cruiser.

A professional hunter called by police shot the two because they had become a safety hazard.

Police took that course of action after conferring with bison experts and concluding that the size of the animals made them too difficult to tranquilize. Buffalo can weigh as much as 2,400 pounds and stand 6 feet tall.