Russian forces launched 367 drones and missiles at Ukrainian cities overnight, including the capital Kyiv, in the largest aerial attack of the war.

Ukraine pioneered the use of small drones on the battlefield. But in Russia’s Kursk region, Moscow’s fiber-optic cables helped turn the tide.

Ukraine's military launched what has been described as the largest drone assault on Russian territory since March.

Russia said it faced a Ukrainian drone attack early on Sunday and intercepted or destroyed around 100 of the unmanned Ukrainian weapons including some aimed at Moscow.

As Ukrainian drones strike deep into Russian territory, they are disrupting day-to-day life and reminding Russians that the war is not confined to the trenches.

Russia's Migalovo Air Base in Tver Oblast came under attack by drones overnight on May 25, the Russian independent news channel Astra reported. Locals reported that drones were targeting the air base and that explosions occurred in the area.

(Reuters) -Fragments from a Russian drone triggered a fire and caused damage to an apartment building in the Ukrainian capital Kyiv early on Sunday, a senior Ukrainian official said. Timur Tkachenko, head of the capital's military administration, said the incident occurred in the Holosiivskyi district, just outside the city centre.

Regarding artillery systems in the Pokrovsk direction, we can achieve some parity in ammunition supply, but the enemy clearly outnumbers us in the use of FPV drones, and in fact, is slightly ahead in terms of the quality of fiber-optic FPV drone operations,