TAIYUAN -- A landslide in Dai county of North China's Shanxi province has killed three people, local authorities said Wednesday.

The landslide occurred at 7:20 pm on Tuesday at the sorting facility of the Mingli Mine, in Heishigou village, Nieying township, officials said.

The victims were clearing up a newly completed reservoir at the mine when the hill on the east side of the reservoir collapsed, burying all of them.

The workers were found at 11 pm Tuesday and sent to the hospital, where they died early Wednesday.