President Robert Mugabe

The United States has expressed doubts over Zimbabwe’s presidential elections, in which its incumbent, Rober Mugabe has emerged winner.

Zimbabwe’s election commission declared 89-year-old Mugabe won 61 per cent of the vote, besting Prime Minister Morgan Tsvangirai’s 34 per cent, to lead the nation for another five years.

Mugabe has been the only leader an independent Zimbabwe has ever known. Tsvangirai, 61, has called the balloting “a fraudulent and a stolen election” — and said he plans to mount a court challenge.

US Secretary of State John Kerry, in a statement,

criticized “the culmination of a deeply flawed process.”

“In light of substantial irregularities reported by domestic and regional observers, the US does not believe the results announced today represent a credible expression of the will of the Zimbabwean people,” Kerry said.

British Foreign Secretary William Hague, meanwhile, commended the peaceful nature of the vote, but expressed concern over how it was conducted. The reported irregularities “call into serious question the credibility of the election,” Hague said.

On Sunday, Australian Foreign Minister Bob Carr called for a do-over, CNN reports.

“These appear to have disenfranchised large numbers of voters and raised doubts about the credibility of the election results,” he said in a statement.