The NYPD is looking for a man they say punched a traffic cop after the cop caught him peeing on his tow truck in Midtown this week.

Police say the incident happened on Wednesday at around 5:30 p.m., on East 39th Street near Madison Avenue. The Daily News reports that Jude Maxwell, 52, was on duty in the area when someone informed him a man was urinating on his truck. When Maxwell tried to stop the alleged urinator, the man reportedly shouted, "Shut the fuck up! You’re not a cop! Fuck traffic!" before shoving and sucker-punching him.

Though some good Samaritans apparently tried to restrain him, the suspect fled eastbound on 39th Street. Maxwell sustained minor injuries, including pain and swelling to his face.

Anyone with information in regards to this incident is asked to call the NYPD's Crime Stoppers Hotline at 1-800-577-TIPS (8477) or for Spanish, 1-888-57-PISTA (74782). The public can also submit their tips by logging onto the Crime Stoppers website or by texting their tips to 274637 (CRIMES) then enter TIP577.