Hortobágy is a village in Hajdú-Bihar County in eastern Hungary.

[4] On 1 July 2016, 4 demolition experts of the Hungarian Defence Force were killed and another seriously injured while attempting to detonate a 250 kilogram Russian-made fragmentation bomb manufactured shortly after WW2.

The incident took place at a firing range within the Hortobágy National Park.

The firing range covers 4,000 hectares (about 9,800 acres) and has been used for practice by the Hungarian armed forces for decades.

[5] The remote and sparsely populated area was used as a shooting range by the Hungarian Army for decades following World War II.