EVERETT — A man was shot and killed at Langus Riverfront Park in Everett Monday afternoon, according to police.

A 911 call was made around 3:15 p.m. Monday, Officer Aaron Snell said.

The man was believed to be middle-aged.

“We initiated life-saving measures unsuccessfully,” Snell said.

The police department’s Major Crimes Unit was investigating the shooting scene Monday afternoon. The park, which is popular among boaters, rowers and walkers, is alongside the Snohomish River.

Police were told a vehicle, possibly an SUV, was seen leaving the scene shortly after the shooting, Snell said.

The Snohomish County Medical Examiner also was called to the scene. That office will be asked to determine the identity of the man.