KALAMZOO, Mich. (AP) — Authorities say a police officer was injured while trying to arrest a suspected drug dealer in Kalamazoo.

The Kalamazoo Department of Public Safety says officers from the Kalamazoo Valley Enforcement Team were conducting surveillance Wednesday when they saw a possible drug deal taking place between two men, who then drove away.

Officers attempted to stop the vehicle when the men jumped out of the still-moving vehicle and fled on foot. Police say the vehicle’s passenger assaulted an officer who was trying to take the 28-year-old into custody and then fled on foot before being caught.

Police say they found suspected crack cocaine that was thrown by the man. The officer was taken to a hospital for treatment of possible broken bones.

Investigators were seeking the driver, a 25-year-old Kalamazoo man.