Serbian presidential elections failed for the third time in a year today, triggering a major political crisis in the Balkan republic.

Serbia’s presidential elections failed for the third time in a year tonight because of a low turnout, according to exit polls.

Serbian presidential elections were on the brink of collapse for the third time in a year as few voters turned out today to choose between a pro-democracy veteran and a strident nationalist.

Serbia was heading for a major political crisis today after it failed for a second time to elect a president and the top contender, Yugoslav president Vojislav Kostunica, said he would not recognise the outcome.

The Yugoslav leadership today agreed in principle on a law to extradite Slobodan Milosevic's allies to the UN war crimes court.