By Rick Reeno

BoxingScene.com first reported late Friday night that a full blown riot erupted in the wake of an IBF junior flyweight title bout between Filipino Johnreil Casimero (16-2, 10KOs) and hometown hero Luis "Mosquito" Lazarte (49-11-2, 18KOs). Casimero stopped Lazarte in the tenth round to capture the vacant IBF junior flyweight championship at Mar del Plata in Buenos Aires, Argentina.

As previously reported, the victory was never announced because a huge crowd of Argentine fans rushed the ring and attacked Casimero and his team, the IBF's officials, journalists and everyone else who tried to prevent the violence from getting worse. Chairs, bottles and punches were flying all over the arena, with very little intervention from the few police officers on the scene.

BoxingScene has since learned that well-known manager and international agent Sean Gibbons was beaten badly, getting cracked to the jaw, kicked in the head several times and possibly suffering broken ribs. Casimero was cracked over the head with a chair. He suffering minor injuries, as did his trainers. The crowd tried to pull Casimero out of the ring, but they were thwarted by a guard who pulled him under the ring to hide him from the crowd - and even referee Eddie Claudio was sent to the hospital to receive stitches to his mouth after catching a chair shot from the rioting crowd. Numerous other injuries were reported.

A video of the riot can be seen here - http://www.youtube.com/watch?v=7wB6GwA3iNU