Ukraine's military stated it attacked the Borisoglebsk airbase in Russia's Voronezh region, successfully hitting a depot of glide bombs and training aircraft.
Russian air defences have downed dozens of Ukrainian drones in widely dispersed parts of the country, including two near the country's second-largest city, Saint Petersburg.
Sweden buys German air defence systems in multibillion kronor deal
"This air defence system is the first we are acquiring and perhaps one of the most important capabilities Sweden has acquired since our Patriot purchase in the 1990s."