HONOLULU -- Honolulu police responded to a call of a stabbing at Radford High School on Thursday.

Paramedics wheeled out a male student with a stab wound to his buttocks at about 11:15 a.m.

The attack happened after the victim tossed a piece of paper over his shoulder while walking down a hallway that hit the attacker, police said. That is when the attacker pulled out a pocketknife and stabbed the teen, police said.

"These are two guys who just didn't get along," Lt. Glenn Maekawa said.

Police arrested the teen accused of stabbing the victim and took him in for booking.