Tensions remained high in Kiev on Monday as several dozen protesters from a group named Spilna Sprava (The Right Deed) seized control of the ministry building late on Sunday, smashing windows and erecting barricades outside.

Meanwhile, Ukraine’s justice minister is threatening to call for a state of emergency after demonstrators occupied the Justice Ministry and protests demanding the president’s resignation spread.

Justice Minister Olena Lukash, who is taking part in negotiations between the opposition and President Viktor Yanukovych, said she would ask for the talks to be broken off if the building was not freed.