Russia accused Ukraine Sunday of launching drone attacks that sparked a fire at a nuclear power plant in its western Kursk region overnight, as Ukraine celebrated 34 years since its independence. Russian officials said several power and energy facilities were targeted in the overnight strikes.

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.