Romania’s mainstream political parties appeared on course to retain control of the country’s parliament, exit polls suggested after a general election on Sunday, despite big gains by nationalist far-right groups.

Romania’s ruling Social Democrats were on course to win a parliamentary election, with exit polls showing the party ahead of a nationalist group that had threatened to drive home a blow to the Black Sea nation’s political establishment.

Electoral data shows a far-right populist leads in Romania’s presidential election and will likely face leftist Prime Minister Marcel Ciolacu in a runoff in two weeks