Overview
- The blast occurred on the schoolyard of Stadtteilschule Niendorf on Paul‑Sorge‑Straße in Hamburg’s Niendorf district.
- Police said three children were lightly injured after a firecracker was set off during the school day.
- According to officers, a 14-year-old ignited the device, with two other boys nearby when it exploded.
- Outlets differ on details: police briefings cited two 14-year-olds and a younger child, whose age is reported as either 10 or 11.
- Medical accounts vary between reports, with police noting two hospitalizations for hand injuries and one acoustic trauma, while one outlet reports only one hospitalization and two children released to their parents.