Riot police were deployed outside Poland’s Constitutional Tribunal as the dispute over who should serve on the court escalated into a confrontation between Prime Minister Donald Tusk’s government and the nationalist opposition, according to Al Jazeera.

Hundreds of protesters gathered outside the building in Warsaw on Friday night after judges elected by the current parliamentary majority announced the suspension of the tribunal’s president, Bogdan Swieczkowski, and his deputy, Bartlomiej Sochanski. Police secured the Constitutional Tribunal as protests erupted over the court chief’s suspension, according to AP News.