Serbians were voting Sunday in parliamentary elections that are expected to produce a third consecutive victory for conservative Prime Minister Aleksandar Vucic.
Vucic's Progressive Party (SNS) was tipped to win more than half of the ballots cast, which would secure an overwhelming majority in the 250-seat legislature.
Vucic and the SNS won elections in 2012 and in 2014. He again opted for polls halfway through his term saying that he wants a full four-year term for EU membership negotiations.
Within the weak opposition, a sharp turn to the right is expected, with pollsters predicting two extremist parties to win at least 5 per cent of the votes and claim seats.
Around 6.7 million voters are eligible to cast ballots between 7 am and 8 pm (0500-1800 GMT).