Video Purportedly Captures Vicious Fight At Rock 'n' Roll McDonalds

(STMW) -- A fight broke out in the early hours of Saturday at the well-known Rock 'n' Roll McDonald's in River North, police say.

Cell phone footage — purportedly of the fight — was posted online by an anonymous source later Saturday. It shows a group of men viciously beating another man with an aluminum chair inside what appears to be the tourist hotspot in the 600 block of North Clark, the Sun-Times is reporting.

The distinctive chairs are of a designer style used at the Rock n' Roll McDonalds, and the restaurant's escalator can also be seen in the video.

Chicago Police News Affairs Officer Hector Alfaro confirmed that police were called about 1 a.m. to a fight at the restaurant. But police haven't reviewed the video because "there was minor property damage and no injuries reported, so there is no further ongoing investigation," Alfaro said.

An unspecified number of people involved in the fight ran away before officers arrived, Alfaro said.

No one was taken to a hospital from the restaurant but there was minor property damage, Alfaro said.

Police said the fight wasn't connected to another large fight involving at least 30 people at Navy Pier at about 7:45 p.m. Friday evening. Five people were arrested for reckless conduct and a pregnant female was taken to a hospital with non-life threatening injuries after that fight, according police and fire officials.