BELGRADE, Serbia — Serbia's ruling populists declared victory at tense municipal elections in dozens of cities and towns throughout the Balkan country Sunday, including a rerun vote in the capital, Belgrade, as opposition claimed major irregularities.
The victory claim, which was likely to be confirmed by the state electoral commission, would cement the right-wing Serbian Progressive Party's hold on power in the country that is a candidate nation for European Union membership.
Prime Minister Milos Vucevic told reporters that the party swept the election and that the victory is ''pure and convincing."
Preliminary results for each city and municipality were expected later Sunday. Official results were expected Monday.
Opposition officials said the vote was marred by major irregularities, which the governing party denied.
Incidents and skirmishes were reported in Belgrade and in the northern city of Novi Sad where opposition groups said the governing party organized ''unlawful'' call centers operated by their activists during Sunday's balloting.
Election observers from the non-government Center for Research, Transparency and Accountability filed several criminal complaints over suspected organized voting, vote-buying and violations of vote secrecy, as well as presence of unauthorized persons at polling stations.
The election in Belgrade was a rerun vote following reports of widespread irregularities in December that triggered political tensions and accusations that President Aleksandar Vucic's governing party rigged the vote.