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Photo: Gelhot / photo booth / IMAGO
On Friday afternoon, the police and rescue workers went to a vocational college in Bielefeld.
There, teachers and students heard shots in the schoolyard and dialed the emergency number.
The police arrested a suspect.
A police spokesman initially did not provide any personal information on Friday afternoon.
There is no evidence that anyone was injured in the incident.
It is also assumed that there is no longer any specific danger.
But the large-scale operation is still ongoing.
According to the "Neue Westfälische", a special task force is still on site.
A helicopter circles the area.
kha/dpa