Three people are in custody after exchanging gunfire with Birmingham police officers Wednesday.

One of the suspects was grazed by a bullet, but not seriously injured.

The incident began at 9:40 p.m. when two North Precinct officers approached a suspicious vehicle in the parking lot of an apartment complex in the 2100 block of 30th Avenue North. As the officers approached the vehicle, three men got out and a shot was fired by one of the suspects, said Sgt. Johnny Williams Jr.

One officer returned fire, grazing one of the men in the arm. The injured suspect was treated on the scene but refused to be taken to the hospital.

All three are undergoing questioning by detectives and then taken to the Birmingham City Jail. Their names have not been released. One man claiming to be one of the suspects appeared to be posting on Facebook from the back of a police cruiser.

No officers were injured in the gunfire, but Birmingham Fire and Rescue Service was later dispatched to the North Precinct to check out one of the officers who was involved. Per departmental policy, the State Bureau of Investigation will lead the probe.