Zambian President Edgar Lungu narrowly won re-election on Monday in a vote his main rival said was rigged.
Hakainde Hichilema’s United Party for National Development (UPND) said it would appeal the result at the Constitutional Court, accusing election officials of fraud during the count which began after voting ended on Thursday.
Lungu faced a tough challenge from Hichilema in a campaign to rule over Africa’s second-largest copper producer which has suffered an economic slump due to depressed commodity prices.
Lungu, who narrowly beat Hichilema in a vote last year to replace late president Michael Sata, won 50.35 percent of the vote against 47.63 for his opponent, the Election Commission of Zambia (ECZ) said on Monday.