An impromptu high school rumble ended swiftly after police swooped down on the Kandal hooligans on Monday.
Authorities said a group of teens spotted a rival gang and gave chase armed with belts, wooden sticks and a cleaver.
The chased finally held their ground and gave battle after being joined by an older relative, who, at 23, probably should have known better.
Arriving police arrested seven of the lot, many of whom carried slight injuries from their battle. RASMEI KAMPUCHEA