Two children were among 11 people killed when a Russian missile hit a residential building in Ukraine's northeastern city of Sumy, Ukrainian officials said, while another missile strike left the region's administrative centre without power.

Ukrainians in the Black Sea port city of Odesa on Monday morning had been without power for 24 hours and further cuts were planned across the country after a massive Russian missile strike over the weekend damaged energy infrastructure.

A Ukrainian official says a Russian strike on a nine-story building in the city of Sumy killed eight people and wounded dozens, as Russia launched a massive drone and missile attack described by offic

Russia unleashed its largest air strike on Ukraine in almost three months on Sunday, launching 120 missiles and 90 drones that killed at least seven people and caused severe damage to the power system,

Russia said Sunday that it destroyed all its planned targets in a sweeping attack on critical energy infrastructure sites in Ukraine.

Russia launched one of the largest missile attacks since the start of the war targeting Ukraine's energy infrastructure overnight. At least 10 people were killed. Ukrainian president Volodymyr Zelensky described the air raids as a "massive combined strike on all regions" aimed at damaging the country's energy infrastructure.

The attack lasted hours and involved around 120 missiles and 90 drones, officials in the country said. At least nine people were killed.