Three people have died and nine others admitted to hospital following a cholera outbreak on Tanzania's semiautonomous Island of Zanzibar, government officials said on Friday. The deaths occurred in Pemba Island, a sister island of the mainland of Unguja Island that forms Zanzibar. By Friday nine patients had been admitted to the cholera special centre, two in critical condition, Zanzibar's minister of health and social welfare, Sultan Mohamed Mugheiry, told a news conference in Stone Town, the Zanzibar capital.