A man was slashed in the face by a stranger in an unprovoked attack inside Penn Station, police said Tuesday.

The 32-year-old victim was inside the subway station within the Midtown travel hub around 2:30 p.m. on Monday when the stranger made an unspecified comment to him before randomly slashing him in the left side of his face, cops said.

The man, who lives in the Bronx, told police a language barrier prevented him from understanding what his attacker said.

Cops provided a video of the suspect, who fled from the station and is still on the loose.

His victim was taken to Mt. Sinai Hospital in stable condition.