The message came after Ukraine’s forces wiped out and damaged 41 of the Kremlin’s nuclear bombers and aircraft, attacking at least four air bases across Russia.

The attack followed a night of bombardment, with Russia launching 472 drones, Ukraine’s air force said. Earlier Sunday, Ukraine’s army said a Russian missile strike on an army training unit killed at least 12 Ukrainian service members and injured 60.

Russian forces launched a massive drone attack overnight that injured several people, including two teenagers, in Ukraine's northeastern Kharkiv region, local officials said on Friday.

It appears to be the first known strike in the war on a facility linked to the FSB, Moscow's main successor to the KGB.

Russian troops launched some 109 drones and five missiles across Ukraine overnight on Friday and into Saturday. Moscow later said it had captured another two Ukrainian villages in the east of the country.

A top Kremlin aide has accused Donald Trump of being “not sufficiently informed” about the situation in Ukraine after the US president said Russian leader Vladimir Putin was “playing with fire.”

Overnight, Russian forces launched an attack on Ukraine using five Iskander ballistic missiles, one guided air-launched missile and 88 drones, Ukraine's Air Force said Wednesday. Air defense units shot down 34 drones, and 37 drones were jammed.

Russia claims the attack happened during a visit to Kursk. Kyiv denied the attack, as tensions escalate with increased strikes and Western support enabling Ukrainian strikes inside Russia.