People in Zimbabwe are voting for their next president - but current leader Robert Mugabe is the only candidate.
Morgan Tsvangirai, the leader of the main opposition party, has pulled out of the election because of violence against his supporters.
But he said he was worried his people would be attacked if they didn't vote.
Lots of countries around the world, including Britain and America, think the voting isn't fair, and say they will not recognise the result.
Some African leaders have asked Mr Mugabe to put off the vote, but he has ignored their telephone calls.
Violence was sparked in Zimbabwe when the elections to choose a new president started months ago.
President Robert Mugabe and Morgan Tsvangirai
The first vote was held on 29 March, but the two main parties couldn't agree who'd won.
Mr Mugabe has said Mr Tsvangirai pulled out of the election because he knew he would lose, and has said people are spreading lies about him and his followers.
But the United Nations has said it thinks that because of violence in the country it will be impossible to have a fair contest to elect a president.
Zimbabwe's cricket team has been banned from playing in England because of trouble in the country.