VLASENICA, Bosnia-Herzegovina -- A 17-year-old shot and killed one teacher and wounded another Monday before taking his own life in front of 30 other students. Bosnia's first school attack came three days after a deadly shooting spree at a German school.

The students ran screaming from the room after the teen-ager shot himself, leaving books and the wounded teacher in a pool of blood. Walls and benches were splattered with blood; bullets blew holes in the walls and shattered classroom windows.

Officials said the teen-ager, Dragoslav Petkovic, opened fire with his father's 7.65-mm handgun shortly after noon at his high school in the eastern town of Vlasenica, about 30 miles northeast of the capital, Sarajevo.

Police cordoned off the school with plastic tape, and students were sent home.