Overview
- An alarm was triggered at the Bruchschule in Witten shortly after 13:00, with police notified at 13:05, according to a police spokesman.
- A large police presence is conducting a room-by-room check of the school after initial inspections found nothing suspicious.
- Ardeystraße near the campus is partly closed and drivers have been asked to avoid the area to keep the operation clear.
- Police say an accidental trigger is possible but unconfirmed, and officials describe the situation as still under assessment.
- Local outlets report heavily armed officers securing the perimeter and significant emergency services on scene, with one report noting children initially were not allowed to leave, while another said instruction continued as normal.