Cops are searching for a knife-wielding suspect who stabbed a man on an MTA bus in Harlem earlier this month.

The suspect stabbed a 38-year-old man in the right forearm and then slashed him on the right hand in an unprovoked attack, according to police.

The attack occurred on the northbound bus near West 135th Street and Lenox Avenue around 1 a.m. on Aug. 11, authorities said.

Footage released by the NYPD shows the suspect sitting down before he charges toward the victim and apparently attempts to grab his right arm.

As the suspect goes off-camera, other bus passengers can be seen fleeing from the incident.

The victim walked to Harlem Hospital in stable condition.

The public is asked to call 1-800-577-TIPS (8477) or for Spanish, 1-888-57-PISTA (74782) if they have information on the whereabouts of the suspect.