Russia's anti-aircraft systems downed 120 Ukrainian drones overnight, mostly in regions bordering Ukraine, the Russian Defense Ministry said on Sunday, reporting no damage.
At least four Ukrainian drones headed for Moscow were shot down on Saturday, the city's mayor said, while one of the capital's main airports temporarily halted outgoing flights.
Mayor Sergei Sobyanin said emergency services were working at the sites of the downed drones, but gave no information on potential damage.
The Defense Ministry said the drones that were intercepted overnight included 30 over the western Bryansk region, 29 in the Kursk region and 17 in Belgorod - all of which share a border with Ukraine.
Another 18 drones were downed over the Oryol region, which borders Kursk and has been hit by previous Ukrainian drone attacks targeting oil facilities.
Russia's civil aviation authority, Rosaviatsiya, said it had lifted restrictions that were introduced overnight to ensure safety due to the drones at airports in St. Petersburg, Kaluga, Moscow and Nizhny Novgorod.
More than three years into the war, Ukraine has increasingly been using drones to attack targets deep inside Russia.
Russian forces gain control of two settlements in Ukraine, Russian military says
Russian military forces have gained control of Sobolivka in Ukraine's Kharkiv region and Piddubne in Donetsk region, the defense ministry also said on Sunday.
Separately, Interfax news agency said Russian forces hit a Ukrainian air base, a facility for the production of components for long-range drones and ammunition warehouses.