Temporary power outages were introduced following the Russian drone attack targeting an energy facility in Ukraine's Rivne Oblast overnight, Ukrenergo reported on July 10.
Power supply was restored by morning, though emergency works are still underway.
Emergency services are on-site, and the fire at an object hit has been contained.
No casualties were reported, Rivne Governor Oleksandr Koval said.
The drone assault prompted air raid alerts in several Ukrainian oblasts. Explosions were also reported in Odesa.