Pro-Russia protesters have stormed government buildings in three major cities in eastern Ukraine April 6, RFE/RL reports.
Several dozen protesters broke through police lines today and entered the regional administration building in Kharkiv.
Police did not use force against the protesters, who raised a Russian flag over the building.
Earlier today, pro-Russian activists seized the regional administration building in Donetsk, and also stormed the state security office in Luhansk.
Some protesters demanded a referendum like the one that resulted in the annexation of Ukraine's Crimea by Russia last month.
Ukraine's acting President Oleksandr Turchynov has cancelled a planned trip to Lithuania tomorrow to deal with the unrest.
Ukraine's Interior Minister Arsen Avakov accused Russian President Vladimir Putin and Ukraine's ousted President Viktor Yanukovych of "ordering and paying for the separatist turmoil" in the east of the country.