The student stabbed the teacher and three others in Oslo

The student has hurt his teacher and three other members of a school staff in the Norwegian capital of Oslos, police have said.

The boy who was learning at this school was arrested but the motives remained unclear, writes Periscope.

The four victims, workers at the Brynsenng School east of town, were taken to hospital with minor injuries.

Police have declared that the investigation of the case has already been launched and that they are talking to witnesses.

There's a very young guy lined up. I can't tell you anything else. He was arrested inside the school,” said Sven Christian Lee.

Police were summoned before 9: 00 a.m. for an incident continuing with a student who stabbed his professor. /Periscopi