Russia pounded Ukraine on Sunday with a massive attack that killed 11 civilians across several regions and damaged the country's already fragile energy grid, as the world prepared to mark 1,000 days since Moscow's invasion.

Nationwide emergency power restrictions would be implemented Monday ahead of a much-feared winter, the state grid operator announced.

President Volodymyr Zelenskyy said Moscow launched 120 missiles and almost 100 drones, targeting Kyiv as well as southern, central and far-western corners of the country.