Zambian incumbent President, the presidential candidate of the ruling Patriotic Front (PF) Edgar Lungu casts his vote at a polling station in Lusaka, Zambia, Aug. 11, 2016. Polling started Thursday morning for Zambia' s general elections and referendum. About 6.7 million registered voters are expected to cast their ballots at nearly 7,700 polling stations across the country, which opened from 6 a.m to 6 p.m. (Xinhua/Penglijun)
