The NYPD has released surveillance video of a suspect who allegedly attacked a teenager on a Manhattan bus after telling him “I hate gay people,” police sources say.

It happened on the afternoon of Nov. 22 aboard an M23 bus in Chelsea.

The suspect punched the 19-year-old in the back of the head as he was exiting the bus, according to sources.

The victim refused medical attention.        

Police are asking for the public’s help tracking down the man seen in the video.