Moments of terror in a high school in Wuppertal , western Germany, where this morning a teenager attacked his classmates with a knife.

The boy was arrested, the circumstances of the stabbing are yet to be clarified.

At least 4 of their peers were injured, while the local press spoke of a "bloody attack". The motive for the gesture is unknown. But for the police it cannot be ruled out that it was an "act of homicidal madness".

(Unioneonline/vf)

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