A Friday morning subway slashing has left a 60-year-old man injured while the suspect remains at large.

During the Friday rush hour after 8 a.m., a subway “stare down” aboard a northbound N/Q/R train prompted one passenger to slash the face and hand of another with a pocketknife, ABC has reported.

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The victim was en route to his work when he accidentally bumped another man on the train as it was at the 57th Street/7th Avenue station, which began the confrontation that led to the slashing, police said to CBS.

The suspect, described as a man in his 40s, ran into the station before fleeing down West 57th Street, ABC added.

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The victim received six stitches at Lenox Hill Hospital, according to CBS, which added that the suspect remains at large.