Update: Man Who Died Aboard Fishing Boat Identified

An Oakland man who died of an on Saturday has been identified as 38-year-old Michael Iwaihara, according to the San Mateo County corner's office.

The U.S. Coast Guard responded to a call that a man aboard a 26-foot boat was suffering from a heart attack at about 8:40 a.m., Coast Guard Petty Officer Roy Olson said.

Medical personnel responded and pronounced Iwaihara dead on the boat, Olson said.

There were three other passengers on board. The death remains under investigation. Update: 

--Bay City News