Russian forces launched a mass overnight drone attack on Ukraine's Black Sea port city of Odesa, wounding three people and damaging many apartments, local officials said early on Tuesday.

A Russian drone has hit a bus carrying workers in the Ukrainian city of Marhanets, killing nine people in a wave of attacks that targeted civilian infrastructure in east, south and central Ukraine, officials said.

For at least the third time this year, Russian drones attacked Ukraine's historic port city of Odesa, a UNESCO World Heritage site, injuring three people and setting residential and commercial buildings ablaze.