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Residents in the capital Lusaka as well as Kitwe and Ndola in the copper belt said they were without power.

KCM is one of Zambia's largest mining companies with operations in four locations, including Chingola, Chililabombwe, Nampundwe and Kitwe.

Sinozam treats many Chinese in Kitwe and its precautions go further than other hospitals in the area.

Copperbelt provincial health director Dr. Robert Zulu, who oversees Kitwe and the surrounding region, told The Associated Press he would not discuss details, citing privacy.

Concerns are high among some in Kitwe.