Roads damaged by mountain torrents in Yuzhong County, northwest China's Gansu Province, reopened on Sunday and power supply has been restored following the disaster that left 13 dead and 30 missing.

According to transport authorities in the provincial capital Lanzhou, which administers Yuzhong, roads leading to the most affected areas reopened on Sunday. The effort involved more than 700 rescuers and over 200 machines and vehicles.

Power was restored to residents affected by the disaster on Saturday night, according to the State Grid Gansu Electric Power Company. A total of 73 rescue vehicles, 42 generators and three power-generating vehicles, together with 330 repair personnel, were mobilized to ensure power supply in the area.

Torrential rains, which led to the mountain torrents, began pounding Yuzhong as well as other areas of Lanzhou on Thursday evening, with precipitation reaching 220.2 millimeters by noon on Friday.

Search and rescue efforts for the missing are underway.