There is a constant buzzing of drones of all sizes above the battlefield in Ukraine as both sides are using unmanned aerial systems in great numbers. Drones have become so important throughout the war that the Ukrainian military has established a separate drone service to control and coordinate the employment of the weapon systems.

Falling debris from a Ukrainian drone that was shot down caused an explosion and a fatal fire in a shopping centre in the city of Vladikavkaz in Russia's North Ossetia region, the local governor said on Wednesday.