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Repair crews have already been deployed in locations where power lines had been damaged. A team of electricians from the militant-occupied territories also arrived at the scene.

The scale of damage and the amount of restoration work required will be determined following proper assessment, Zhebrivskiy said.

Read alsoU.S. Mission to OSCE calls on Russia to end attempts to seize new Ukrainian territoriesAs UNIAN reported earlier, the combined Russian-separatists forces repeatedly attacked Ukrainian positions in Avdiyivka's industrial zone on January 29, the Anti-Terrorist Operation (ATO) Headquarters said. The enemy had to retreat, having sustained losses.

Read alsoPM Groysman visits Avdiyivka amid shelling, says enough money for emergency (Video)An attack on the Ukrainian-controlled town of Avdiyivka late on Monday left nearly 34,000 residents cut off the power grids. Heat and water supplies were also halted amid weather forecast of 20 degrees Celsius below zero overnight.