EU leaders have frozen assets belonging to deposed Ukraine leaders, and have warned Russia of sanctions if they do not pull troops out of Crimea.
Neo-Nazis are in office for the first time in post-war Europe – but they are backed by the US and the West.
The US and Russia have stepped up diplomatic efforts to defuse the Ukraine crisis amid heightened tensions in Crimea.
If the situation in Ukraine has not been addressed appropriately, EU leaders say the organisation might place resctrictions on Russia.
President Vladimir Putin says Russia has reserved the right to use all options in Ukraine, but that Moscow would use force only as a last resort.
Contradicitng his earlier comments, Ukraine’s former president Viktor Yanukovych asked for an intervention in Crimea, says Russia’s UN ambassador.
Ukraine’s acting president has called on Moscow to halt the growing military presence in the Crimea region.
Events in Crimea have the potential to turn Ukraine into Europe’s worst security nightmare since the revolutions of 1989.
Arseny Yatseniuk says the announcement to invade Ukraine made by Russia’s Vladimir Putin was not a threat, but "the declaration of war to my country".
Russia’s decision to send troops into Ukraine has added an element of uncertainty to global markets. Here’s what is to look out for this week.
Nato ambassadors were due to meet in Brussels on Sunday as war looms in Ukraine.
Russian President Vladimir Putin asked Parliament to approve force "in connection with the extraordinary situation in Ukraine".
Russian President Vladimir Putin has cited a threat to Russian citizens and servicemen at its Black Sea fleet as a need to send in armed forces.
The US president has warned Russia’s head of state against military action in Ukraine after its new leaders accused it of deploying troops in Crimea.
Defiant crowds may destroy an old regime, but seldom do they build a new one that endures.
Russia’s President Vladimir Putin has put combat troops on high alert for war near Ukraine in the Kremlin’s most powerful gesture yet.
Ukraine’s presidential website has announced that acting president Oleksander Turchinov has assumed the duties of head of the armed forces.
Ousted Ukranian President Viktor Yanukovich is being hunted by police for "mass murder" linked to the revolt against his rule.
After a day of drama in which Ukraine’s president was ousted, who was left ruling the country? According to Parliament, it was not Viktor Yanukovich.
Ukraine’s Parliament has voted to remove President Viktor Yanukovich from office, hours after he abandoned his Kiev office to protesters.
Protesters have been holding the offices of President Viktor Yanukovich, whose exact whereabouts are unknown, for the next president.
Ukraine’s opposition UDAR(Punch) party intends on submitting a parliamentary resolution calling on President Viktor Yanukovych to step down.
Ukraine opposition leaders have signed an EU-mediated peace deal with President Viktor Yanukovich, aiming to end a violent standoff.
Ukraine’s President Viktor Yanukovych says a deal has been reached with the opposition, who has not confirmed the news after "very difficult" talks.
Protests were peaceful until government security forces launched an unexpected assault on Maidan square. But now protesters
are fighting back.
Deaths have been reported after Kiev demonstrators were told to end their efforts to occupy government buildings.
The rand stumbled for a second day as inflation rose and unrest in Ukraine and Thailand caused investors to sour towards emerging markets.
Anti-government demonstrators now occupy four buildings in the centre of Kiev, including the city hall.
Ukraine’s President Viktor Yanukovich has tried to calm protest violence in Kiev that has claimed three lives. But the opposition remains sceptical.
Protesters refuse to retreat after Ukraine abandons a key agreement with the European Union.
The president weathered the Orange Revolution, but will need Moscow’s support to survive this year’s protests. But the opposition says its time to go.
Ukraine’s world boxing champion Vitali Klitschko has led protesters through the streets of Kiev demanding the release of jailed former prime minister.