Russia denies being behind acts of sabotage.

But it is suspected of being behind attacks on warehouses and railway networks in EU member states this year, including Sweden and the Czech Republic.

The president of the German BfV, Thomas Haldenwang, described the device that caught fire at the DHL logistics center at Leipzig-Halle airport as alleged Russian sabotage.

The package is believed to have arrived from Lithuania and its return flight was delayed.

The device that caught fire in Minworth is also believed to have come from Lithuania, where the head of parliament’s national defense and security committee, Arvydas Pocius, said it was part of an ongoing campaign of hybrid attacks aimed at “causing chaos, panic and mistrust”.

DHL has increased security since the recent cargo fires. “DHL Express has taken measures in all European countries to protect its network, its employees and facilities, as well as its customers’ shipments,” a spokeswoman said a few weeks ago.

Poland’s government has already responded to Russian sabotage: Foreign Minister Radoslaw Sikorski announced the closure of a Russian consulate in Poznan and threatened to expel the Russian ambassador if it fails to end its attacks.

Russia’s Foreign Ministry condemned the move as “a hostile step that will receive a painful response.”