Croatia's governing conservatives have convincingly won a highly contested parliamentary election, but will still need support from far-right groups to stay in power, according to the official vote count.
The election followed a campaign that centred on a bitter rivalry between the country's president and prime minister.
The ballot pitted the ruling conservative Croatian Democratic Union, or HDZ, led by Prime Minister Andrej Plenkovic, against an alliance of centrist and left-wing parties informally led by populist President Zoran Milanovic and his Social Democratic Party, or SDP.
With over 90 per cent of the ballots counted, the state electoral commission said that the HDZ won 60 seats in the 151-seat parliament. The SDP got 42 seats. The far-right Statehood Movement was third, with 14 seats, making it a kingmaker in future talks for the next government.
"Starting tomorrow morning, we will start forming a new parliamentary majority in order to form our third government," Plenkovic said in his victory speech.
"I want to congratulate the other parties that were defeated by the HDZ."
Turnout was more than 50 per cent — a record — hours before the polls closed.
The election was held as Croatia, a European Union and NATO member, struggles with the highest inflation rate in the eurozone, a labor shortage, illegal migration and reports of widespread corruption.
At stake in the race for Croatia's 151-seat parliament wasn't just the Adriatic Sea country's future domestic policies, but also the EU's unity as it grapples with the instability from Russia's full-scale invasion of Ukraine.
If the HDZ stays in power as expected, the country would continue on a pro-Western course in supporting Ukraine in its fight against Russia. Success for SDP could put it on track for victory in the European Parliament election in June and the presidential election in December. It would shake the HDZ's long dominance of politics and potentially open space for stronger pro-Russia influence in the country, akin to Hungary and Slovakia.
Andrej Plenkovic casts his ballot at a polling station in Zagreb. – AP
The HDZ has largely held office since Croatia gained independence from the former Yugoslavia in 1991. The Balkan nation became the newest member of the European Union in 2013, and joined Europe's passport-free travel area and the eurozone last year.
The president holds a largely ceremonial role in Croatia, while the prime minister exerts most of the political power. The election has played out as the final episode in a long-running rivalry between Plenkovic and Milanovic.
After Milanovic scheduled the election and announced his surprise bid for prime minister, he began campaigning on behalf of the SDP. But Croatia's constitutional court judges stepped in, saying the move was unconstitutional.
The judges said that the president can't run for prime minister, take part in the parliamentary election or campaign in favour of any party, unless he first resigns.
Milanovic refused, openly ignoring the top court and continuing to campaign in favour of the left-wing alliance
Milanovic has accused Plenkovic and the HDZ of rampant corruption and "massive theft" of state funds, referring to past and present scandals, some of which had ended up in the courts.
Plenkovic, who has led the government since 2016, repeatedly denied the accusations, saying Milanovic as the prime minister would shift the country away from the EU and closer to Russia.
Milanovic has often voiced a pro-Russia stance during the war in Ukraine, opposing the training of Ukrainian soldiers in Croatia as well as sending weapons to Ukraine because, in his view, it only prolongs the war. He also criticised the EU's policies over Ukraine.