A group of school children in Chur in canton Graubünden were injured due to a pyrotechnic device yesterday morning – thought to be a firecracker.
Several children, aged between 13 and 15, suffered minor injuries. 24 kids had to be taken to hospital for checks.
Police sealed off the building, not allowing anyone to leave – so they could catch the perpetrators.
Investigations involving the cantonal youth public prosecutor’s office are now underway.
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