'Nasty' Derry assault video - P.S.N.I. urge people to 'RING 999'

The P.S.N.I. has issued a warning about a video of a "nasty assault" in Derry.

P.S.N.I. issued the appeal on Friday morning when people began to report the incident on social media.

Union Hall Place, Derry. (Photo: Google Street View)

Union Hall Place, Derry. (Photo: Google Street View)

"We have a lot of people on line reporting an assault at Union Hall Place in Derry/Londonderry last night [February 21]," said police.

"This has not yet been reported but there is a video circulating showing a pretty nasty assault."

The police urged anyone witnessing such an incident to dial the emergency number immediately.

"If you see something like this please please please ring 999 at the time.

"If you saw a house on fire you wouldn’t message NIFRS, likewise if you see an assault don’t message us, RING 999!!! The victim has walked away from this one but remember that one punch can kill."