At least five people were killed and one wounded Thursday during an "anti-terror" operation in an eastern Ukrainian city, while Russia's top diplomat said the United States should use its influence to make Kiev fulfill its commitment to the Geneva agreement.
Ukrainian acting President Alexandr Turchynov on Thursday urged Russia to pull back its troops from the joint border following Moscow's announcement of military exercises in response to Kiev's "anti-terror" operation.
The Ukrainian Foreign Ministry voiced outrage Wednesday against Russia's intention to set up border controls at the straits separating Crimea from Ukraine.
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.
U.S. President Barack Obama on Wednesday once again warned Russia against further destabilizing Ukraine, but said Moscow was not seeking "military confrontation."
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.
U.S. President Barack Obama and his Russian counterpart Vladimir Putin on Monday expressed sharply different views on the escalating unrest in eastern Ukraine, both urging the other side to help stop the turmoil.
The situation in southeastern Ukraine is taking a dangerous turn, the Russian Foreign Ministry said Sunday.
The regional police chief here has agreed to demands to resign by pro-Russian protesters who occupied his headquarters Saturday, hours after a dozen gunmen seized two buildings in another eastern Ukraine town.
En route home from his Asia- Pacific trip Thursday, U.S. Defense Secretary Chuck Hagel placed an in-flight call to Ukraine's Acting Minister of Defense Mykhaylo Koval, reaffirming American help to Ukraine.
President Barack Obama on Thursday urged European and other allies to be prepared to join U.S. in imposing additional sanctions on Russia if it "escalates the crisis in Ukraine."
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.
U.S. Secretary of State John Kerry on Tuesday accused Russian agents of stirring unrest in eastern Ukraine that could be used as a pretext for military intervention.
Ukrainian Prime Minister Arseny Yatsenyuk on Monday accused Russia of stirring up a fresh wave of unrest by fomenting separatist sentiment in eastern Ukraine.
Any further Russian efforts to destabilize Ukraine will incur costs for Russia, U.S. State Secretary John Kerry warned Russian Foreign Minister Sergei Lavrov on Monday.
Russian gas monopoly Gazprom said Tuesday it canceled discounts on natural gas supplies to Ukraine.