A 14-year-old boy is in critical condition after falling from the top of a moving subway train in Brooklyn on Monday afternoon, according to the NYPD.

Police responded to a 911 call at 3:41 p.m. at the Hewes Street J/M subway station.

The teen was riding on top of a northbound express train when he fell onto the roadbed as the train was pulling into the station, according to police.

The boy was taken to Bellevue Hospital in critical condition.

No arrests have been made, and the investigation remains ongoing.