Police are investigating a Sunday evening shooting and a related car crash in Southeast Seattle.

Occupants of two cars started firing at each other while driving northbound on Rainier Avenue South near 56th Avenue South, police at the scene told a Seattle Times photographer. Police described the incident as a “rolling gun battle.”

A passenger in one of the cars was wounded, and the car crashed into a nearby bus stop. The second car sped away on Seward Park Avenue South.

The driver of the crashed car pulled the “significantly injured” passenger out and they fled in another vehicle, Seattle police said in an online posting. The pair later arrived at Harborview Medical Center, where the wounded man was being treated for his injuries. There was no immediate word on the man’s condition.

It was the second shooting under investigation by Seattle police Sunday. Several hours earlier, a couple reported being shot at and wounded by a group of males in West Seattle.

Police were searching Sunday evening for the other people involved in the Southeast Seattle incident and urged anyone with information to call 911 and speak with officers.