Postal worker grazed by bullet on Detroit's west side

Police are investigating after a postal worker was grazed by a bullet Saturday afternoon. 

The shooting happened at Coyle and Puritan on the west side, which is near Greenfield Road. 

The postal worker was taken to the hospital as a precaution but wasn't seriously hurt. 

Police aren't sure why the shooting happened but say the suspect was not shooting at the postal worker.