A Brooklyn teen smashed his head into a metal beam and nearly died while subway surfing early Tuesday with his pals — just days after a synthetic weed-smoking man was killed surfing atop a train in Manhattan, law-enforcement sources said.
A train operator going towards Manhattan spotted Isa Islam, 17, atop the Brooklyn-bound F train heading towards the Fourth Avenue-9th Street stop in Park Slope with three others and radioed authorities shortly before the teen was hit, sources said.
The motorman in the train Islam was on stopped the train as it was pulling into the station, and rescuers found the teen bloodied and injured atop the train after power was cut, sources said.
The other teens he was with could not be found on the train or in the tunnel, sources added.
Islam lost an eye, and is fighting for his life at Lutheran Medical Center, where his family visited him later that day, according to neighbors.
Police identified him through his cell phone, which cops recovered, sources added. There was no identification on him at that time.
A barefoot homeless man was killed last Wednesday after he got on top of a downtown 6 train as it entered the 96th Street station– and was also hit by a beam.
A witness told cops he had been smoking K2 earlier that day, sources said.
“Subway surfing is simply one of the dumbest things you can do,” said an MTA spokesman at the time.