Investigators are working to determine the cause of a house fire that left a man dead Thursday in North Sea, Southampton Town police said.

Police have not disclosed the identity of the victim, pending notification of next of kin.

The fire, at a home on Peconic Bay Avenue in the Roses Grove area, was reported in a 911 call at 1:17 p.m., police said.

Responding firefighters from North Sea, Sag Harbor and Southampton found the home "fully engulfed," according to authorities, and police said the man was later located inside the home.

The fire is being investigated by the Suffolk County police Arson Squad, Southampton Town Detective Division and the Southampton Town Fire Marshal.

Additional details were not immediately available.

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