Wanganui High School and Wanganui Rugby Football Union are investigating a violent under-16s schoolboy game that was called off early after a number of fights broke out.
One WHS player was sent off and two more sinbinned before the game on Saturday against Palmerston North Boys High School's U16 B team was canned.
While the game, held at the Wanganui school, was played under the Manawatu Secondary Schools competition banner, WRFU chief executive Dale Cobb said judiciary action may be necessary from his union in a "cold, hard effort'' to send a message to schools and clubs to cut out that play.
"It's absolutely a disappointment and it's something players need to take responsibility for.
"The behaviour is alarming. Players need a reality check," he said.