Mixed martial arts fighter Nick Ring helped break up an attack on two teenagers in south Calgary on Wednesday evening.

The 33-year-old, who is on the card of UFC 149 in Calgary on July 21, was driving when he saw a group of teenagers attacking two others near MacLeod Trail.

"They were assaulting them," Ring said. "One of the attacker girls was kneeing the victim girl in the face.

"They beat the tar out of them. These poor kids had cuts all over their face from the strikes they'd taken."

Ring says when he jumped out of his car, he was joined by another bystander. After checking on the victims, he and the bystander gave chase and caught one male.

Ring followed the others while he called the police.