A man slashed his co-worker on the side of his face during an argument in Chelsea Monday morning, police said.

The incident occurred in front of the delivery service business where both men work on West 24th Street near Seventh Avenue around 6:15 a.m., according to cops.

Emergency responders rushed the victim, 39, to Bellevue Hospital Center with non-life threatening injuries, officials said.

The attacker, 52, fled the scene following the knifing and no arrests have been made.

The victim and the suspect are both employed at Columbus Delivery & Logistics, according to cops.

A rep for the business refused comment to The Post, except to say: “The police are in an active investigation.”