Polls opened across Zimbabwe on Wednesday (July 31), with long queues of people braving a bout of unseasonably cold weather to stand in line from well before dawn.
Zimbabweans are voting in a fiercely contested election pitting President Robert Mugabe's ZANU-PF against Prime Minister Morgan Tsvangirai's MDC, who has vowed to push Africa's oldest leader into retirement after 33 years in power.
Both ZANU-PF and MDC are forecasting landslide wins but, in a country with a history of election violence, the bigger question is whether the loser will accept the result of a poll dogged by logistical problems and allegations of vote-rigging.
With no reliable opinion polls, it is hard to say whether the 61-year-old Tsvangirai will succeed in his third attempt to unseat the 89-year-old Mugabe, who has run the southern African nation since independence from Britain in 1980.
On the eve of the vote Mugabe said he would accept defeat and retire peacefully.
A spokesman for Tsvangirai's Movement for Democratic Change (MDC) said the party was prepared only to accept the results if the poll was "free and fair."
Presented by Adam Justice