Police and fire officials are investigating the death of a lifeguard found unconscious in a pool where he worked in the New Carrollton area.
The man was found floating in the pool of an apartment complex Saturday afternoon, authorities said. Rescuers performed CPR, but the man could not be revived, authorities said.
It's not clear how the man ended up in the water or how he died.
The pool's management company tried to contact the lifeguard Saturday and sent someone to check on him when he did not respond, said Prince George's County fire department spokesman Mark Brady.
The lifeguard was wearing shoes when he was found, Brady said. Officials believe he may have been cleaning the pool before it was to open for the day.