A man was slashed on a Manhattan subway platform when a brawl between two groups of apparently drunk people broke out Friday night, police said.

The two sides, made up of three men each, got into a fight at the 145th Street D train station in Harlem at around 9:30 p.m., according to the NYPD.

One man suffered a minor stab wound during the fracas, cops said.

Police said that the groups appeared to be “intoxicated.”

It wasn’t immediately clear what started the dispute. Investigators were looking for the assailant.