Russian-appointed authorities say they are working to partially restore power in the occupied Ukrainian city of Kherson following what they have called a Ukrainian terrorist attack on power lines.

The southern city in the region that Moscow illegally annexed in September was cut off from power and water supplies on Sunday following damage to three power lines.

Kirill Stremousov, deputy head of the pro-Kremlin administration of the partially occupied Kherson region, said Monday that “power and connectivity is being partially restored” in Kherson city. The alleged attack occurred on the Berislav-Kakhovka power line, and Russian state media reported on Sunday that the Kakhovka hydroelectric power station had also been damaged by Ukrainian strikes.

Ukrainian officials have not responded to the allegations.

Stremousov has repeatedly called for civilians to evacuate from Kherson — which lies on the western bank of the Dnieper River — to Russian-controlled territory on the eastern bank in anticipation of a major Ukrainian counteroffensive to retake the strategic port city.

Last month, Ukraine’s Southern Operational Command reported that occupying Russian forces in the Kherson region had been purposefully shutting off electricity and water and depriving the population of internet access in order to force them to evacuate.