The leader of Serbia's Progressive Party, Tomislav Nikolic, has accused his rival, incumbent Boris Tadic of election fraud.
Nikolic, who faces Tadic in a May 20 presidential run-off, alleged that Tadic’s Democratic Party printed extra ballots and tampered with voting lists in the May 6 vote.
Nikolic’s nationalist party garnered 24 percent of the vote to become the strongest single political force in the future parliament.
Tadic, who struck a deal on May 9 to form a new government with the Socialists in exchange for their vital backing in the presidential run-off, dismissed the fraud claims as "insinuations."
Based on reporting by AFP and AP