Authorities found a man's body in a ditch in the unincorporated area of Calabasas on Wednesday morning.
Officers responded to the 1600 block of Las Virgenes Canyon Road at around 11:43 a.m., when a passerby called about a man lying on a drainage ditch, according to the Los Angeles County Sheriff's Department.
The deputies found the victim unresponsive. He was pronounced dead at the scene, the agency said.
It was unclear whether the man was killed there or the body had been dumped at the ditch, Lt. Scott Hoglund said.
There's a temple and a school around the area, according to the officer.
The L.A. County Department of Medical Examiner-Coroner will determine the man's identity and cause of death at a later date, the Sheriff's Department said.
Authorities provided no further details.
Anyone with information can call the Sheriff's Department's homicide bureau at 323-890-5500. Those who wish to remain anonymous can contact Crime Stoppers by calling 800-222-TIPS (8477), using the mobile app "P3 Tips" or visiting lacrimestoppers.org.