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Ukraine orders full military mobilisation over Russia moves Ukraine orders full military mobilisation over Russia moves
(35 minutes later)
Ukraine has ordered a full military mobilisation in response to Russia's build-up of its forces in Crimea.Ukraine has ordered a full military mobilisation in response to Russia's build-up of its forces in Crimea.
Acting President Olexander Turchynov has ordered the closure of airspace to all non-civilian aircraft.Acting President Olexander Turchynov has ordered the closure of airspace to all non-civilian aircraft.
US President Barack Obama has called Russian troop deployments a "violation of Ukrainian sovereignty".US President Barack Obama has called Russian troop deployments a "violation of Ukrainian sovereignty".
Ukraine has said it will seek the help of US and UK leaders in guaranteeing its security. Nato has called emergency talks to be held at 1200 GMT.Ukraine has said it will seek the help of US and UK leaders in guaranteeing its security. Nato has called emergency talks to be held at 1200 GMT.
Several other measures were announced by Andriy Parubiy, chair of the national security and defence council of Ukraine:Several other measures were announced by Andriy Parubiy, chair of the national security and defence council of Ukraine:
The BBC has seen what appear to be Russian troops digging trenches on the Crimean border.The BBC has seen what appear to be Russian troops digging trenches on the Crimean border.
Heavily armed groups continue to occupy key sites on the peninsula, including airports and communications hubs, although there has been no actual violence.Heavily armed groups continue to occupy key sites on the peninsula, including airports and communications hubs, although there has been no actual violence.
Russian 'violation'Russian 'violation'
On Saturday, Mr Obama held a 90-minute telephone conversation with Russian leader Vladimir Putin and urged him to pull forces back to bases in Crimea.On Saturday, Mr Obama held a 90-minute telephone conversation with Russian leader Vladimir Putin and urged him to pull forces back to bases in Crimea.
Mr Putin said Moscow reserved the right to protect its interests and those of Russian speakers in Ukraine.Mr Putin said Moscow reserved the right to protect its interests and those of Russian speakers in Ukraine.
President Putin submitted his request for troops to the Russian parliament on Saturday "in connection with the extraordinary situation in Ukraine and the threat to the lives of Russian citizens", the Kremlin said.President Putin submitted his request for troops to the Russian parliament on Saturday "in connection with the extraordinary situation in Ukraine and the threat to the lives of Russian citizens", the Kremlin said.
The US, France and Canada say they are suspending preparations for a G8 summit in the Russian resort of Sochi in June as a reaction to the deployment, with Canada also recalling its ambassador from Moscow for consultations.The US, France and Canada say they are suspending preparations for a G8 summit in the Russian resort of Sochi in June as a reaction to the deployment, with Canada also recalling its ambassador from Moscow for consultations.
Mr Obama, the White House said, told Mr Putin that the appropriate way to address any concerns "is peacefully through direct engagement" with the Ukrainian government and international mediating bodies.Mr Obama, the White House said, told Mr Putin that the appropriate way to address any concerns "is peacefully through direct engagement" with the Ukrainian government and international mediating bodies.
He told Mr Putin his actions were a "breach of international law, including Russia's obligations under the UN Charter, and of its 1997 military basing agreement with Ukraine", a statement added.He told Mr Putin his actions were a "breach of international law, including Russia's obligations under the UN Charter, and of its 1997 military basing agreement with Ukraine", a statement added.
The Kremlin said that in his phone call with Mr Obama, President Putin "underlined that there are real threats to the life and health of Russian citizens and compatriots on Ukrainian territory".The Kremlin said that in his phone call with Mr Obama, President Putin "underlined that there are real threats to the life and health of Russian citizens and compatriots on Ukrainian territory".
Military build-upMilitary build-up
Tensions are high in Ukraine, not only in Crimea, which is home to a large number of ethnic Russians.Tensions are high in Ukraine, not only in Crimea, which is home to a large number of ethnic Russians.
In the Crimean port city of Feodosia, a group of Ukrainian marines were blockaded into their base on Sunday.
Armed men surrounded the base demanding that the garrison pledge loyalty to the region's new pro-Russian authorities.
Around 100 marines are thought to be inside the base.
There were big pro-Russian rallies in several Ukrainian cities on Saturday.There were big pro-Russian rallies in several Ukrainian cities on Saturday.
In Donetsk, traditional stronghold of ousted Ukraine President Viktor Yanukovych, demonstrators from a crowd of some 7,000 tried unsuccessfully to occupy the regional administration building, raising a Russian tricolour on a nearby flag-post. Observers have been watching a build-up of Russian military activity in Crimea - home to Russia's Black Sea Fleet - for the past few days.
In Kharkiv, Ukraine's second-biggest city, dozens of people were injured after scuffles between pro- and anti-Russian protesters broke out outside the regional administration building.
In Mariupol, in the south-east, hundreds of protesters carrying Russian flags gathered outside the city council.
Observers have been watching a build up of Russian military activity in Crimea - home to Russia's Black Sea Fleet - for the past few days.
Latest reports say two Russian anti-submarine warships have appeared off the coast of Crimea in violation of an agreement governing the presence of Russia's Fleet in the peninsula.Latest reports say two Russian anti-submarine warships have appeared off the coast of Crimea in violation of an agreement governing the presence of Russia's Fleet in the peninsula.
Russian soldiers are widely reported to be guarding a number of administrative buildings and military bases in Crimea. Parliament, airports, the state television building and telecommunications hubs have also been surrounded.Russian soldiers are widely reported to be guarding a number of administrative buildings and military bases in Crimea. Parliament, airports, the state television building and telecommunications hubs have also been surrounded.
Some 6,000 extra Russian troops and 30 additional armoured vehicles are now in Crimea, Ukrainian Defence Minister Ihor Tenyukh said on Saturday.Some 6,000 extra Russian troops and 30 additional armoured vehicles are now in Crimea, Ukrainian Defence Minister Ihor Tenyukh said on Saturday.
The newly-elected pro-Moscow leader of Crimea, Sergiy Aksyonov, said he had appealed to Mr Putin for help to ensure peace on the peninsula.The newly-elected pro-Moscow leader of Crimea, Sergiy Aksyonov, said he had appealed to Mr Putin for help to ensure peace on the peninsula.
The interim government in Kiev does not recognise Mr Aksyonov and his government, and signed a decree on Saturday that their election at an emergency session of the regional parliament this week was illegal.The interim government in Kiev does not recognise Mr Aksyonov and his government, and signed a decree on Saturday that their election at an emergency session of the regional parliament this week was illegal.
Are you in Ukraine or in the Crimean region? What is your reaction to this news of Russian troop deployment? Email us at haveyoursay@bbc.co.uk adding 'Ukraine' in the subject heading and including your contact details.Are you in Ukraine or in the Crimean region? What is your reaction to this news of Russian troop deployment? Email us at haveyoursay@bbc.co.uk adding 'Ukraine' in the subject heading and including your contact details.