Fifty-one drones were destroyed over Crimea, 44 over the Krasnodar region, six over the Belgorod region, six over the Black Sea and one over the Kurskregion, the defence ministry said in a statement.
The offensive was one of the largest overnight drone attacks by Ukraine andcomes as Russian forces advance along the front line, making their biggest territorial gains in 18 months, reports BSS.
Russia's latest offensive has further stretched Ukraine's outgunned andoutmanned forces.
Moscow seized 278 square kilometres (107 square miles) of Ukrainian territory between May 9 and 15, according to AFP calculations based on data from the Institute for the Study of War (ISW) -- the largest territorial gain in asingle operation since mid-December 2022.