The unmanned vehicle packed with explosives has added to sense of vulnerability ahead of key regional races.

It has emerged that a drone equipped with explosives and a detonator was discovered near a Ukrainian aircraft at Leipzig/Halle airport in Germany on the night of 4-5 August.

The attempted attack follows a series of suspected sabotage incidents linked by investigators to Russian military intelligence

Flights at Germany’s Leipzig/Halle Airport were disrupted overnight as authorities investigated