PITTSBURGH — Pittsburgh police were searching for a man who bit the ear off another man as they argued about President Donald Trump.

Officers responded to a gas station in East Liberty about 6:45 a.m. Monday, after the victim ran there for help. Police say they know who the ear-biting suspect is, but have declined to name him while they searched for the suspect and investigate.

Police spokesman Emily Schaffer said she’s unable to say at this point whether the victim was pro- or anti-Trump, or which position motivated the attacker.

The 30-year-old victim was attacked at his apartment after a verbal argument turned physical. The suspect then left.

Police say they recovered the victim’s ear in the apartment and he was taken to UPMC Presbyterian hospital.