Ukrainian troops hoisted their national flag over four more eastern cities, except for the insurgents' main stronghold Slavyansk, Ukrainian senior officials said Sunday.
The Moscow-led Collective Security Treaty Organization (CSTO), an intergovernmental military alliance, on Wednesday condemned Ukraine for continuing punitive operation in its southeastern regions and killings of Russian journalists.
The Russian Foreign Ministry has demanded that Kiev take urgent measures and release the two journalists from the Russian TV channel Zvezda (the Star), who were detained near Slovyansk in eastern Ukraine Friday.
Russia is ready for talks with Ukraine only when there are no artillery fires in the country, said Valentina Matviyenko, head of the Russian parliament's upper house Saturday.
Russia has already received around 4, 000 Ukrainian refugees, Russian Prime Minister Dmitry Medvedev said Thursday.
Decentralization in Ukraine will proceed according to the Polish model, Ukrainian president-elect Petro Poroshenko said Wednesday in Warsaw.
British Prime Minister David Cameron is set to have a meeting with Russian President Vladimir Putin on Friday in France to discuss the Ukraine situation, a Downing Street spokesperson said Monday.
Insurgents brought down a Ukrainian military helicopter near the rebel-held eastern town of Slavyansk, killing 14 troops onboard, acting President Alexandr Turchynov said Thursday.
Local residents in Ukraine's eastern Donetsk and Lugansk regions went to the polls on Sunday in referendums aimed at seeking independence from the country.
Russia had withdrawn its troops from the Ukrainian border, said Russian President Vladimir Putin during a meeting with President of the Swiss Confederation Didier Burkhalter in Moscow, the Russian capital, Wednesday.
Ukrainian acting President Alexandr Turchynov met U.S. Vice President Joe Biden on Tuesday to discuss ways out of the eastern European country's crisis, the parliament's press service said.
Ousted Ukrainian President Viktor Yanukovych on Monday called for immediate dialogue between Kiev and eastern regions, urging the withdrawal of armed forces from those territories.
Russia warned Ukraine not to use force on pro-Russia protesters Monday, saying it might lead to civil war, while the West continued to impose sanctions on Russia.
The Ukrainian Post has reported experiencing temporary difficulties in the delivery of mail in Crimea, according to a statement of the Luxembourg Institute of Regulation published on Tuesday.
Ukraine on Tuesday appealed to the Budapest Memorandum guarantor countries to set up an emergency commission to de-escalate the ongoing crisis in the country.
The Ukrainian Foreign Ministry has dismissed reports Kiev is allegedly in talks with the United States over a possible deployment of missile defense systems in Ukraine.
U.S. President Barack Obama and German Chancellor Angela Merkel agreed on Thursday to coordinate with the European Union (EU) in their response to ongoing violence in Ukraine.