Ukraine's air force said on Sunday Russia had launched a ballistic missile and 72 strike drones, plus several other decoy drones, in overnight attacks on the country. Ukrainian air defenses intercepted 48 of the drones, the air force said.

Russia has accused Ukraine of drone strikes that sparked a fire at a nuclear power plant in the Kursk region Sunday as Ukraine marked its Independence Day.

Ukraine is celebrating its independence day on Sunday, which marks the country's declaration of independence from the Soviet Union in 1991. The UK government has announced that Ukrainian flags will appear above Downing Street on Sunday in recognition of the anniversary.