STATEN ISLAND, N.Y. — The body of a deceased 70-year-old man was found in the sauna of LA Fitness in Greenridge by an employee of the gym minutes after opening Thursday morning, according to the NYPD.

It’s believed the man entered the gym during business hours Wednesday night and remained there overnight, said a source with knowledge of the investigation.

The medical examiner will determine his cause of death, but no criminality is suspected at this time, police said.