Four pupils injured after stabbing attack at school in Germany

Police and ambulances at the scene of the attack in Wuppertal (Roberto Pfeil/dpa via AP/PA)

Four students have been injured in a stabbing at a school in the western German city of Wuppertal on Thursday and a suspect, believed to be a student himself, was arrested, authorities said.

The incident took place at Wilhelm Dorpfeld high school in the city of some 350,000 people near Duesseldorf and Cologne.