Man sucker punches cop in head during unrelated arrest in the Bronx: Police

THE BRONX, N.Y. (WPIX) -- A man was arrested after he sucker punched a police officer from behind as the cop tried to arrest another man in the Bronx Tuesday, the NYPD said.

According to police, officers were arresting a robbery suspect around 5 p.m. near the intersection of Davidson Avenue and West 183rd Street in the University Heights section.

Out of nowhere, another man walked up and punched one of the cops in the head from behind and then fled the scene, police said.

The officers chased the man into a nearby bodega where he was apprehended and placed under arrest, according to authorities.

Police also said a woman was arrested shortly after for allegedly punching a cop.

A longer version of the video posted on Facebook appears to show that woman try to interfere with the initial robbery arrest and officers physically keeping her away.