Arrest warrant issued after knife attack at German school

Germany's public prosecutor's office has applied for an arrest warrant for attempted murder against the suspected pupil following a knife attack at a school, reported dpa.

The suspect had not yet come to the attention of the authorities, the prosecutor said.

There are indications of a mental illness, the investigators reported on Friday. This can be deduced from a letter in which he confesses to the offence.

Four pupils at a secondary school in the western German city of Wuppertal were injured, at least two of them seriously, in the knife attack on Thursday, according to police and officials.

The suspected attacker, who is in custody, is believed to be a 17-year-old male pupil at the school.