Protests against the Ukrainian government have spread to eastern and southern regions, traditional strongholds of President Viktor Yanukovych, according to Radio Free Europe.
On January 26, protesters tried to storm local government buildings in the eastern cities of Zaporyzhzhya and Dnipropetrovsk, but were repelled by police using tear gas, water cannon, and stun grenades.
Further anti-Yanukovych protests were held in the southern city of Odesa and Kharkiv in the northeast.
Protesters have occupied municipal government offices in up to 10 regions in the west of the country, where opposition is strongest.
Analysts say it is the greatest unrest Ukraine has witnessed since the collapse of the Soviet Union.