Russian drones have pummeled the Ukrainian Black Sea port city of Odesa, injuring three people, sparking fires, and underlining challenges for even a limited truce.

Russian drones have pummeled the Ukrainian Black Sea port city of Odesa, injuring three people and sparking fires.

Russian forces launched a mass drone attack on Ukraine's Black Sea port of Odesa late on Thursday, injuring three people and damaging a high-rise apartment building and a shopping centre, the regional governor said.