A man was slashed during a fight on a Brooklyn subway train early Tuesday, police said.

The 48-year-old victim got into an argument with another straphanger as they were riding a northbound C train around 1:30 a.m.

A third man slashed the victim before he and his buddy got off the train at the Clinton-Washington Avenues station, police said.

The victim, who suffered a gash from his shoulder to his elbow, was taken to a hospital in stable condition, police said.

No arrests have been made and the two suspects are still being sought.