A worker at a Long Island cemetery was killed early Thursday when the grave he was digging collapsed on him, police said.

Suffolk County police said Rodwin Allicock, 42, was “leveling out the bottom” of a grave at Washington Memorial Park in Mount Sinai when the grave gave way around 8:30 a.m.

The grave was more than seven feet deep, the department said. 

His co-workers attempted to dig Allicock out, but were unsuccessful,” police said in a press release. 

Police said Allicock, of Coram, was pronounced dead at the scene after cops received a 911 call.

The incident is under investigation by Suffolk County police and the Occupational Safety and Health Administration, cops said. 

No further information was immediately available.