Overview

• Police say the confrontation occurred around 3:50 p.m. Sunday inside the Sunset Park Costco on Third Avenue in Brooklyn.
• Footage circulating online shows an argument between two couples over a shopping cart that escalated to shoving before one man punched the other.
• The injured man, 42, hit his head on a cart and received treatment for eyelid and forehead injuries at NYU Langone Hospital-Brooklyn.
• The assailant and another individual left the store, no arrests have been announced, and the investigation remains active.
• Shoppers describe the store and parking lot as frequently overcrowded, and the video has drawn hundreds of thousands of views online.