A man was found dead in what appears to be a freak escalator accident in a Bronx subway station early Sunday morning. Police responding to a 911 call about an emotionally disturbed person in the Intervale 2/5 Station in Longwood say they found a 48-year-old man "unconscious and unresponsive on the top landing of the escalator" around 3:45 a.m.

The man, identified by the NYPD as Bronx resident Carlos Alvarez, was taken to Lincoln Hospital, where he was pronounced dead. The cause of death is under investigation by the NYC Medical Examiner, but a police source tells the NY Post that part of the man's shirt became "caught in the mechanism" and choked him.

An MTA worker told the tabloid the man's death was "an accident. Somebody fell and went all the way up." PIX 11 reports that police had to cut Alvarez's shirt in order to free him. The station also reports that security camera video shows Alvarez struggling to free himself before police arrived.

In a statement, MTA spokesperson Shams said, “This is a tragic and unusual incident which is under investigation — our thoughts are with this man’s family and friends.”

Earlier this month, a man died in a Washington D.C. Metro station after riding an escalator in a wheelchair and tumbling backward near the top.