Overview
- The explosion occurred on the outdoor grounds of Stadtteilschule Niendorf in Hamburg-Niendorf around midday Friday, according to police.
- A 10-year-old suffered acoustic trauma, a 14-year-old was treated for minor injuries, and a second 14-year-old was taken to hospital with severe hand wounds.
- Emergency medical services and police responded to the campus and provided on-site care.
- The responsible Kriminalamt has opened an investigation and is reviewing evidence from the scene.
- Officers examined a black backpack at the school, and the cause and specific firecracker type remain undetermined.