Ukraine

Scores of Russian soldiers are reportedly entering Ukraine through eastern borders amid escalating crisis.

Ukraine has recaptured a small airport previously occupied, says government.

Ukraine's acting president Oleksandr Turchynov has announced the launch of a military operation in the eastern Donetsk region.

Ukraine paratroopers carried out military exercises in the Donetsk region, as tensions continue in the east of the country.

Obama says protesters must surrender their arms, while Putin asks US president to help prevent more bloodshed.

Moscow's Strategic Missile Forces conducts ballistic missile test from Plesetsk.

Ukraine's UN ambassador Yuriy Sergeyev vowed that they would press ahead with the military measures if the separatists do not give up their arms.

Russian ambassador to the UN Vitaly Churkin put the blame squarely on the west and said it was the responsibility of the western powers to "avert a civil war".

US ambassador to the UN Samantha Power accused Moscow of orchestrating the latest events in Ukraine putting the lives of scores of civilians at risk.

Kiev's deadline to pro-Russian protesters to relinquish weapons passes as tensions continue to build up in east Ukraine.

Russia and western powers indulge in blame game as Kiev vows to press ahead with full-scale offensive against separatists.

One Ukrainian reported killed in operation to re-take police station, while Russia claims that USA has mercenaries on the ground.

Kiev administration launches "anti-terrorist operation" in eastern Ukrainian cities as helicopters and infantry vehicles are reportedly deployed.

Pro-Russian protesters thought to be behind latest standoff in Slaviansk.

US widens sanctions against Russia over Ukraine crisis blacklisting six Crimean officials and a gas company.

Moscow warns Russians not to travel to countries that have extradition treaties with US

Nato satellite images show heavy military build-up of Russian troops as well as tanks and jets on Ukraine borders.

Brazil, Russia, India and China face heightened political risk in 2014 according to new report

Burger King plans to open up restaurants in Crimea after McDonald's exits.

Ukraine arrests 70 pro-Russian protesters in Kharkov and recaptures regional administration building.

Moscow says Ukraine's military preparations in eastern cities could unleash 'civil war' amid increasing unrest.

Anti-Kiev protesters announce referendum on 11 May for Donetsk to decide autonomy from Ukraine in Crimea-style unrest.

Anti-Kiev demonstrators call for Crimea-style referendum to decide autonomy from Ukraine.

Russia's 'next targets to annex' are outlined in alleged telephone recording between Russian Ambassadors Igor Chubarov and Sergei Bakharev

How have companies been affected by the sanctions imposed on Russia?

With an army of 40,000 to 50,000 troops carrying out "exercises" it is difficult to see any tangible results arising from talks between Russia and the US.

Internet sensation Natalia Poklonskaya to become key GTA character fighting for Autonomous Republic of Crimea.

Increasing number of Russian troops near Ukraine border is ominous, warns United States.

Best photos of the day: 28 March 2014.

'Don't Give it to a Russian' campaign in Ukraine punishes making war with not making love.