In the early morning hours of a wintry Saturday in Saskatoon, police were called to investigate an assault on Central Avenue, outside a cold beer and wine store.

Police spokesperson Alyson Edwards said that when they first investigated on Nov. 28 "it did not appear to be a serious incident."

That changed over the weekend. A video of a beating in Sutherland was posted on YouTube, tens of thousands of people watched it, and dozens of them urged police to have a second look.

"This video is concerning to us. It is graphic and violent and we want to pursue the investigation as aggressively as we can," said Edwards.

Warning: this video contains profanity and violence. This is an excerpt of the video.

Two large men get into a brutal fight with two smaller men outside a bar on Central Avenue in Saskatoon. 0:14

The video show a violent altercation. Two large men repeatedly punch and kick two other men outside of a cold beer and wine store on Central Avenue.

Social media names two suspects in altercation

On social media, people are naming two suspects who are possibly involved in the altercation. Police said they have identified some of the people in the video, but would not confirm the identity of the suspects, nor would they speculate on how long their investigation could take.

The case is now in the hands of the police Targeted Enforcement Unit.

"Even though we have a number of people sending us the video, it's the witnesses that were present that we want to hear from," said Edwards.