Putin warns 'situation deteriorating' as US accuses Moscow of trying to provoke an incident to falsely justify invasion; US envoy says up to 190,000 Russian troops massed on border

Diplomats to huddle at Munich security confab, which Moscow has so far declined to attend; Britain, US say Russia has increased troops, as Kremlin claims more tanks withdrawn

Commercial satellite company's high-resolution images show Russian troops' staging grounds, airfields, artillery positions on Ukrainian borders, but can't provide a full picture

'We're extremely concerned': HIAS, with its Ukrainian partner, prepares for up to millions of refugees fleeing Russian invasion, calls on European leaders to get ready

Secretary of State Antony Blinken tells UN Moscow could order assault in 'coming days' after 'staged' attack: 'I am here today not to start a war, but to prevent one'

Kyiv has 'tough conversation' with Michael Brodsky over Foreign Ministry director-general asking Moscow to help evacuate its citizens in case of occupation

Moscow kicks out US deputy mission chief as US defense secretary suggests Kremlin looking to ‘justify’ potential incursion into Ukraine with shelling along border

Ukrainian military says kindergarten was hit, accuses Russian-backed forces of 'special cynicism'; Russian separatists claim Kyiv is escalating the conflict

Washington says 7,000 more soldiers sent with 150,000-plus now surrounding country; Blinken: Putin 'can pull the trigger' any day; Russia-chaired Security Council to meet

Foreign Ministry opens consular office in western city of Lviv as Jerusalem reportedly asks Moscow for assistance in evacuating its citizens in event of invasion