Members of extreme rightist Spilna Sprava Party guard the seized Ukrainian Ministry of Justice in Kiev on Monday, 27th January, 2014. LEHTIKUVA / Antti Aimo-Koivisto *** FINLAND OUT. NO THIRD PARTY SALES. ***

Demonstrators at the barricades of Hrusevskoho Street in Kiev on Monday, 27th January, 2014. LEHTIKUVA / Antti Aimo-Koivisto *** FINLAND OUT. NO THIRD PARTY SALES. ***

Demonstrators wave the flag of Ukraine at the barricades of Hrusevskoho Street in Kiev on Monday, 27th January, 2014. LEHTIKUVA / Antti Aimo-Koivisto *** FINLAND OUT. NO THIRD PARTY SALES. ***

Demonstrators wave the flag of Ukraine at the barricades of Hrusevskoho Street in Kiev on Monday, 27th January, 2014. LEHTIKUVA / Antti Aimo-Koivisto *** FINLAND OUT. NO THIRD PARTY SALES. ***

Demonstrators at the barricades of Hrusevskoho Street in Kiev on Monday, 27th January, 2014. LEHTIKUVA / Antti Aimo-Koivisto *** FINLAND OUT. NO THIRD PARTY SALES. ***

Members of extreme rightist Spilna Sprava Party guard the seized Ukrainian Ministry of Justice in Kiev on Monday, 27th January, 2014. LEHTIKUVA / Antti Aimo-Koivisto *** FINLAND OUT. NO THIRD PARTY SALES. ***

Demonstrators at the barricades of Hrusevskoho Street in Kiev on Monday, 27th January, 2014. LEHTIKUVA / Antti Aimo-Koivisto *** FINLAND OUT. NO THIRD PARTY SALES. ***

Riot police at the Hrusevskoho Street in Kiev on Monday, 27th January, 2014. LEHTIKUVA / Antti Aimo-Koivisto *** FINLAND OUT. NO THIRD PARTY SALES. ***

Demonstrators at the barricades of Hrusevskoho Street in Kiev on Monday, 27th January, 2014. LEHTIKUVA / Antti Aimo-Koivisto *** FINLAND OUT. NO THIRD PARTY SALES. ***

A protester prepares a barricade in front of the Justice Ministry in Kiev, Ukraine, Monday Jan. 27, 2014. Protesters seized the Justice Ministry building Sunday night, adding another government building to the several already occupied by the opposition. (AP Photo/Darko Vojinovic)

A protester sprays water on a street in the hopes it will freeze, thus making it inaccessible to police in front of the Justice Ministry in Kiev, Ukraine, Monday Jan. 27, 2014. Protesters seized the Justice Ministry building Sunday night, adding another government building to the several already occupied by the opposition. (AP Photo/Darko Vojinovic)

3A protester guards the barricades in front of riot police in Kiev, Ukraine, Monday, Jan. 27, 2014. Ukraine's justice minister is threatening to call for a state of emergency unless protesters leave her ministry building, which they occupied during the night. The seizure of the building early Monday underlined how anti-government demonstrators are increasingly willing to take dramatic action as they push for the president's resignation and other concessions. Protesters now occupy four sizable buildings in downtown Kiev, including the city hall. (AP Photo/Efrem Lukatsky)