Zimbabwe ? With longtime incumbent Robert Mugabe continuing to campaign despite his opponent’s withdrawal, Zimbabwe voters were warned of violent repercussions if they fail to vote in today’s run-off presidential election.

Mugabe, campaigning in a lime-green jacket decked with the ruling ZANU-PF Party logo, declared that Zimbabwe would not accept calls from African leaders or anyone else to postpone the vote.

In recent days, Mugabe has been the subject of unprecedented criticism from normally muted African leaders, including a rebuke from former South African President Nelson Mandela, seen as Africa’s elder statesman. Mandela decried Zimbabwe’s “tragic failure of leadership.”

“We have some of our brothers in Africa making that call, pushing us to violate our own law and we have refused to do so, we are sticking to our law,” said Mugabe, who refused to postpone the vote after opposition leader Morgan Tsvangirai pulled out Sunday because of political violence that has left 85 of his supporters dead and 3,000 injured.

Tsvangirai warned Thursday that the election was a sham that would be rejected by the world as illegitimate. But Mugabe, 84, who has ruled Zimbabwe for 28 years since independence, said the nation would not accept solutions imposed from outside.