Ukrainian drone attacks sparked a massive fire at an oil depot in a rare attack on the Black Sea resort of Sochi. Plumes of thick smoke rose above the city, forcing the airport to close and requiring more than 100 firefighters to tackle the blaze.

Russia launched waves of missiles and drones on Kyiv before dawn on Thursday, killing 16 people, including two children, and wounding well over 100 others, officials in the Ukrainian capital said.

The attacks struck a residential building and a moped, killing three civilians in the Chuhuiv district. Local prosecutors are investigating the attack as a war crime.