A man was stabbed in the arm during a fight in a Manhattan subway station on Thursday night, police said.

The 45-year-old victim got into an argument with another man at around 9:40 p.m. on the platform for the F-Train at the East Broadway station, cops said.

The suspect stabbed the man once in the arm with an unknown object. He then fled the station.

The victim was rushed to Bellevue Hospital in serious condition.