The person suspected of shooting four men – one fatally – in a Jurupa Valley restaurant parking lot on Sunday, Feb. 28, is still at large, officials say.

The shooting was reported at 2 a.m. in the 5500 block of Etiwanda Avenue, Riverside County Sheriff’s deputies said in a news release.

When deputies arrived, they discovered the men suffering from gunshot wounds. They were all taken to a local hospital, where three were treated for non-life-threatening injuries.

The fourth man died from his injuries “despite hours of life-saving efforts by medical staff,” the release said.

His name is being withheld pending family notification.

The person suspected of shooting the men fled the scene and has not since been identified.

Investigators ask anyone with information about the case to contact the department’s Central Homicide Unit at 951-955-2777 or the Jurupa Valley Station at 951-955-2600.

This story is developing. Check back for updates.