ROBERT Mugabe looked to a seventh term as Zimbabwe's president after winning elections denounced by the opposition as "stolen" and criticised by Western powers.
Mugabe, 89, who has run the country since he helped end white rule in 1980, trounced his long-standing political rival, Morgan Tsvangirai, in Wednesday's election, Zimbabwean election officials said.
By the time he completes his new tenure, he will have ruled the former British colony in southern Africa for 38 years.
Official results showed Mugabe won 61 per cent of the presidential vote and his party got a super majority in parliament that will allow it to change the constitution. He routed Tsvangirai who trailed heavily with 34 per cent.
But 61-year-old Tsvangirai, who has unsuccessfully tried to unseat Mugabe three times, condemned the vote as "fraudulent and stolen".
The reaction in the Sunday press was divisive with state-controlled newspaper The Herald proclaiming "President Mugabe romps to victory", while the independent Daily News said "It's a crisis".
US Secretary of State John Kerry meanwhile described the election as "deeply flawed" and said the US "does not believe that the results ... today represent a credible expression of the will of the Zimbabwean people."
British Foreign Secretary William Hague added his own "grave concerns" over the conduct of the vote in the former colony.
On Sunday, Australia called for Zimbabwe to go to the polls again.
"Given our doubts about the results, Australia calls for a re-run of the elections based on a verified and agreed voters roll," Foreign Minister Bob Carr said in a statement.
Tsvangirai vowed to challenge the result in court and said his Movement for Democratic Change (MDC) would boycott government institutions.
"We will not join government," he said. "We will go to court."
"The fraudulent and stolen election has plunged Zimbabwe into a constitutional, political and economic crisis."
With gentler assessments from African observers who nonetheless noted flaws, President Jacob Zuma of powerful neighbour South Africa offered his "profound congratulations" to Mugabe on Sunday.
"President Zuma urges all political parties in Zimbabwe to accept the outcome of the elections as election observers reported it to be an expression of the will of the people," a foreign ministry statement said.
Tsvangirai has been in a coalition with Mugabe since 2009. He defended the decision then to enter into an uneasy power-sharing government with Mugabe, who has had him arrested, beaten and charged with treason.
"Our participation rescued this country. Schools had closed, hospitals had closed. We were using the Zimbabwe dollar which was worthless, there were no goods in the shops, everyone was desperate," he said.
But Mugabe's ZANU-PF party says there is no more need for the MDC in the new government.
"We have received over 60 per cent of the vote, we have two thirds majority, why would we want to bring someone else on board," State Security Minister Sydney Sekeramayi said to AFP.
The MDC now has until Wednesday to present evidence of fraud to the high court, but finding a smoking gun may prove difficult. Inauguration is expected within 48 hours of the court's decision.