A 29-year-old man was found dead on Imperial Beach Sunday, according to the San Diego County Sheriff's Department.
Someone walking along the beach called deputies just after 7 a.m. reporting they saw someone laying on the sand near the main lifeguard tower.
When officers arrived at the scene they found an unresponsive man, later identified as Zabiullah Rahmani, and declared him dead at the scene.
Officials interviewed a woman who was with the man before he went into the ocean and believe drugs and alcohol may have played a role.
The San Diego County Medical Examiner's Office will determine the cause of death.