DETROIT (WXYZ) - Everyone says it started out as horseplay, but it escalated quickly and in the end a teacher at Osborn High School was dialing 911 on his cell phone from inside his classroom.
Detroit Public Schools police say someone hit the teacher in the back with a stapler, hid in a closet and started hitting the teacher in the chest when the teacher opened the closet door.
"It was crazy", says one student who was there when it happened, "I feel bad, he's a nice teacher", says another.
Detroit police responded to the call for help just after 12:30 but DPS police are handling the case.
DPS Chief Roderick Grimes says "The message here is we won't tolerate any negative behavior in our schools and we will do everything to make our schools safe for the teachers and the students."
Two students were arrested, a 14-year-old and a 16-year-old. The 14-year-old was later released to his parents. The 16-year-old, who police say is on probation for carrying a gun, is being held at the juvenile jail.