Slovenia's Prime Minister Anton Rop has conceded defeat in Sunday's parliamentary elections.
Early returns gave the center-right opposition Democratic Party of challenger Janez Jansa 29 percent of the vote while Mr. Rop's Liberal Democrats had 21 percent.
Mr. Rop promised to work with other opposition parties in parliament, and to come back stronger in the next national elections.
The prime minister's party has ruled most of the 13 years since Slovenia won independence from Yugoslavia in 1991. Slovenia achieved its greatest victory in May when it joined the European Union and NATO.
Meanwhile, polls have closed in Serbia where Belgrade and several towns are holding runoff elections for mayor. Initial reports say voter turnout was a slight 21 percent.