A 22-year-old man was shoved onto the tracks at a Brooklyn subway station in an unprovoked attack early Sunday morning, police said.

An unknown male suspect first punched the victim in the face then pushed him onto the roadbed at Atlantic Avenue-Barclays Center station at about 8:50 a.m., according to the NYPD.

The attack left the victim with a fractured left arm and wrist and cuts and bruises to his knees, cops said.

He was transported by EMS to Methodist Hospital in stable condition.

Police said the assailant fled on a northbound Q train. He was still being sought late Monday.