The Hungarian Armed Forces’ 1st Explosive Ordnance Disposal and Naval Regiment reported the discovery Monday.

The clearance operation took place Friday at 404 Üllői út, where specialists uncovered Soviet, German, Hungarian and U.S.-made munitions, along with other wartime remnants.

The haul included 79 Soviet 82 mm mortar bombs, 77 German 81 mm mortar bombs, two German 120 mm mortar bombs, 10 German 7.5 cm fragmentation shells and 12 Soviet RG-42 hand grenades.

Specialists also recovered 100 kilograms of small-arms ammunition, 50 kilograms of shell casing fragments and 10 kilograms of explosive residue.

According to the regiment’s Facebook post, the munitions had likely been dumped in a pit and set alight in an attempt to destroy them. Some devices and fragments had consequently fused together, making their separation particularly difficult and time-consuming.

The specialists effectively had to chisel the ordnance apart during the operation, which ran from 8 a.m. to 2:30 p.m. The regiment said the devices were safely disposed of.

The site has yielded other wartime explosives in recent weeks. In mid-October, specialists defused Soviet FAB-100 bombs on two separate occasions. During the second operation, another 24 explosive devices of various types and sizes were removed alongside a large aerial bomb.