LUSAKA, Rabi'I 11, 1437, December 22, 2015, SPA -- Zambia was plunged into a blackout on Tuesday affecting almost the whole of the country, the state power utility Zesco Ltd said. "Almost the whole country except for Southern and Western province has experienced a power failure but we are yet to establish what has caused it," Zesco spokeswoman Bessie Banda told Reuters. --SPA 22:36 LOCAL TIME 19:36 GMT www.spa.gov.sa/w