ZAGREB, Croatia — The conservative Croatian Democratic Union won the most seats in parliamentary elections held in Croatia on Sunday, but the country looked set for long negotiations among potential coalition partners after voters once again declined to return a clear governing majority. The snap vote was called after the previous conservative-led coalition government collapsed in June, triggering the biggest political turmoil in the nation of 4.2 million people since it joined the European Union in 2013. Opinion polls suggest that neither the conservative Croatian Democratic Union, known as HDZ, nor the left-leaning Social Democrats and their People’s Coalition, will win enough votes to rule alone, though the leftist alliance has been projected taking a slight lead. (AP Photo/Darko Bandic)

Andrej Plenkovic, left, leader of center-right HDZ party addresses the media and supporters at his party's headquarters in Zagreb, Croatia, early Monday, Sept. 12, 2016.
Voters in Croatia go to the polls for a parliamentary election with the conservative Croatian Democratic Union taking an early lead.