STAMFORD, Conn. (CBSNewYork) — Two teenagers from Norwalk were seriously injured Friday night when they were attacked by a large group while leaving a high school basketball game, police said.

The victims had just attended a game between their school, Brien McMahon High School, and Stamford High. In the parking lot, they were suddenly surrounded by 15 to 20 males, police said.

“They asked them if they were from Norwalk,” Stamford police Lt. Diedrich Hohn told WCBS 880’s Fran Schneidau. “When they said ‘yeah,’ the group basically attacked them. So during the attack, they were punched and kicked.

“Apparently there’s some feuding going on between the Norwalk group and the Stamford group, and these two kids who really had nothing to do with anything were targeted because they’re from Norwalk,” Hohn added.

One teen suffered a stab wound to his chest, and the other had his teeth kicked in, police said.

The main agressor was Malik Claiborne, 19, Hohn said. He is charged with assault and conspiracy, and is being held on $25,000 bond.

Hohn said a large bandage on Claiborne’s left hand helped the victims identify their alleged attacker.