The explosives were reportedly missing for weeks.

When train carriages were returned to Poland’s state-owned railway company, it emerged that five pallets of mines were missing.

Onet reported that the missing mines were carried on a civilian carriage through several Polish cities, including Szczecin, Poznań, Warsaw and Białystok, over the course of nearly two weeks. They were eventually located near Orla, a village in northeastern Poland, inside a warehouse belonging to furniture giant IKEA.