Seven million voters are preparing to go the polls in Serbia to choose a president, a 250-seat national parliament and local councils.
Tomislav Nikolic, who heads up the populist Serbian Progressive Party, is a leading contender. He has narrowly lost two earlier presidential votes.
Nikolic claims to have shifted from a staunch anti-western stance, to one that is pro-Europe. But some doubt his change of heart. He once said he would rather see Serbia become a Russian province than a member of the EU.
The pro-EU Democratic Party and its leader Boris Tadic are also said to be a favourite. He has told supporters that he is confident of victory.
In March, Tadic led Serbia’s bid to gain EU candidate status, following the arrests of wartime Bosnian Serb leaders Ratko Mladic and Radovan Karadzic.
According to recent polls, pro-EU and nationalist camps are running virtually neck and neck.