Hakainde Hichilema, opposition leader of the United Party for National Development (UPND), casts his ballot at a polling station in Lusaka, capital of 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)
