A suspect linked to a subway assault in the Bronx is on the loose, police say.

According to the NYPD, a 68-year-old man on the southbound 4 train at 161 Street station was attacked by another man with a bottle.

The suspect broke the bottle over the victim's face, causing it to shatter and cut the victim's face and eye.

The 68-year-old man was taken to the hospital and is stable. The suspect fled in an unknown direction.