KYIV, Ukraine — A Russian drone slammed into an apartment building in eastern Ukraine early Saturday while many were sleeping, killing four people — three in Dnipro and one in Kharkiv — and wounding 12 others, Ukrainian authorities reported.

The attack in Dnipro, Ukraine’s fourth-largest city, was part of a large Russian missile and drone barrage across the country that targeted power infrastructure. It also killed a worker at an energy company in Kharkiv, farther north, a local official said.

A fire broke out and several apartments were destroyed in the nine-story building in Dnipro, the emergency services said. Rescuers recovered the bodies of three people, while two children were among the wounded.

Russia fired a total of 458 drones and 45 missiles, including 32 ballistic missiles. U

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