Some students say the fight is not related to UPNG protest.
A Goroka student was attacked and is alleged to have been wounded by some Hagen students and was admitted at Goroka hospital.
The Hagen students paid K1, 000 compensation on Sunday.
But some Goroka students were not satisfied.
They combined with Chimbu students with support from outside elements and attacked Hagen and Wabag students in the morning.
The crowd from market that ran to UOG gate and back to town in the morning were opportunists.
Meanwhile many students have left the Campus.