The name of the 31-year-old male victim has not been revealed yet, but Morro Bay Harbor officials have confirmed that one boogie boarder was killed. The attack happened around an area known as “The Pit” on State Parks Beach.
Officials said the man was pronounced dead at the scene after a shark attack.
Emergency services received calls reporting an unconscious male victim pulled from the water with injuries which looked like a shark bite.
Crews from the harbour, police and fire departments responded to the call and declared the victim dead on the scene.
Eric Endersby, Morro Bay Harbour Patrol director, told LA Times that the man appeared to be a bodyboarder.
After the attack, a nearby female surfer reportedly paddled over to help and dragged the injured 31-year-old to the beach.
Mr Endersby said 25 to 30 people were in the water when the man was dragged out.
In 10 minutes, the time harbour patrol cleared out the waters.
The patrol director said: “Word spread like wildfire, and people quickly got out of the water.”
The San Luis Obispo County Coroner’s Office and State Parks officials are now investigating the incident.
Authorities put up signs reporting the shark attack on the beach, and the public will not be allowed in the water for the next 24 hours.
Morro Bay and State Parks beaches remained open.
The shark attack is believed to be San Luis Obispo County’s first such fatality in 18 years.