MANORHAVEN -  Police are investigating what caused a deadly boat explosion on the North Shore. 

The 33-foot boat exploded just before 3 p.m. yesterday as it was fueling at Manhasset Bay Marina in the Manorhaven portion of Port Washington. 

The boat owner has been identified as Bob Hogan, 74, the former mayor of Plandome Manor, according to Newsday. 

Hogan's passenger dove into the water and wasn't hurt.

Police say a marina worker pushed the burning boat away from the dock and the gas pump and suffered burns to his arms and face.

No other injuries were reported. 

Police say the boat drifted to a nearby dock, setting it on fire and damaging two other boats.