- UN envoy Robert Serry threatened at gunpoint and ends mission in Crimea.
- US, UK and Ukraine have called for international observers to be sent to Ukraine.
- Ukrainian vessel carrying Nato equipment heading to Odessa, US vessel heading towards Black Sea.
- US Secretary of State John Kerry and Russian Foreign Minister Sergei Lavrov due to hold talks
- Tense stand-off in Crimea continues without violence outbursts
- Russia has test-fired an Topol RS-12M intercontinental ballistic missile
- Donetsk's self-appointed pro-Russia governor Pavel Gubarev calls for secession
- US President Obama spoke to German Chancellor Merkel discuss crisis in Phone conversation
18:59 Our live coverage ends here. IBTimes UK will be back with fresh developments in the Ukraine tomorrow after a day in which a UN envoy was threatened at gunpoint and forced to flee Crimea, the Russian and Ukrainian foreign ministers met for talks at the French foreign ministry, and the US and UK called for international observers to be sent to the region.
18:49 According to AFP, both the Russian and Ukrainian foreign ministers are now at the French ministry for talks.
18:42 UN envoy Robert Serry is allegedly waiting in the business lounge at Simferopol airport. He will fly after 2100 local time. The only flight just after 2100 is to Istanbul.
18:31 Pictures continue to emanate from various Ukrainian cities such as Lviv in the West.
18:05 It is confirmed that Robert Serry is now leaving Crimea in order to de-escalate the tense situation earlier where the diplomat was forced into a coffee shop after being threatened at gunpoint by militia.
17:59 Updates continue from Simferopol where women were allegedly attacked earlier. Now protesting saying that they were not attacked.
17:28 UN envoy Robert Serry was not kidnapped but threatened at gunpoint, according to the UN Deputy Secretary-General. He is now leaving the country after being barricaded in a coffee shop by militiamen. Read the unbelievable developing story here.
16:44 Reports are coming in that UN envoy Robert Serry has been kidnapped at gunpoint in Simferopol.
16:12 A Ukrainian vessel is returning to the Black Sea port of Sevastopol after being docked in Turkey for repairs.
15:57 The first OSCE observers have arrived in Ukraine.
15:40 According to AP, hundreds of demonstrators waving Russian flags have stormed a government building in Donetsk in the eastern Ukraine.
The region is the home area of former Ukrainian President Viktor Yanukovych.
Many of the protesters waved Russian and other flags. Many were chanting "Russia! Russia!"
15:35 The US State Department has tweeted a photo of foreign ministers Kerry, Hague and Deshchytsia talking over the Budapest Memorandum.
15:22 Abby Martin, the RT journalist who broke rank and criticised Russia's invasion of Crimea has responded to the wave of attention that greeted her monologue in her follow-up show.
15:14 Russia's Itar-Tass news agency has quoted a source with the Russian Black Sea Fleet as saying that an Ukrainian Navy's frigate carrying Nato equipment has entered the port of Odessa, southern Ukraine, while a US destroyer is moving towards the Black Sea.
15:08 US, Ukraine and Britain said international observers should be deployed immediately in eastern Ukraine and Crimea.
A joint statement by foreign ministers for the three countries read:
The United States, United Kingdom and Ukraine agreed that direct talks between Ukraine and Russia, facilitated as needed by members of the international community, are crucial to resolving the current situation
They also agreed that international observers should be deployed immediately in Ukraine, especially in eastern Ukraine and Crimea.
14:16 The EU Council has adopted sanctions targeting 18 people who allegedly misappropriated Ukrainian state funds.
You can find more information here.
14:11 Yatsenyuk blamed Russia's leader for the ongoing crisis and said Putin was the one acting outside the law.
A number of military forces of the Russian Federation are deployed in Crimea. We cannot figure out the reason why Russian boots are on Ukrainian ground. And it's crystal clear that it was ordered personally by President Putin. This is Ukrainian territory and Russia wants to grab control over Crimea. But I will underline again, we will do our best in order to regain control over Ukrainian territory. The Russian military is to be back in the barracks.
What happened in Crimea is unconstitutional and resembles ... a coup supported by the Russian government and the Russian military.
The Ukrainian government is legitimate. And let me remind Mr. Putin that this government was supported by the constitutional majority of Ukrainian MPs with 371 votes. We are legitimate and we must fulfill our responsibilities. And we strongly recommend to our Russian partners to build up relations with the new Ukrainian government."
14:10 Ukraine's Prime Minister Arseniy Yatsenyuk told The Associated Press that a special task force should be established "to consider what kind of additional autonomy the Crimean Republic could get."
Yatsenyuk denied a report that Ukraine was negotiating with the US for deployment of missile defences in exchange for financial help.
"This is not true," Yatsenyuk said.
"We have no talks with the government of the United States of America on any kind of deployment of any military forces. The only negotiations we have is to get financial support, financial aid from the United States government in order to stabilize the economic situation in my country. It's absurd."
14:06 The Organisation for Security and Cooperation in Europe (OSCE) said it sent 35 unarmed military personnel to Ukraine as observers in response to a request from Kiev.
13:59 Swedish foreign minister Carl Bildt, in Kiev, tweeted:
13:47 Journalists continue to report Russian soldiers in and around Sevastopol, contradicting Putin's claims that there are no Russian forces in Crimea.
13:41 This is the scene in Donetsk right now where a pro-Ukraine rally is taking place.
13:26 US Secretary of State John Kerry, UK Foreign Secretary William Hague and Ukraine's Interim President Oleksandr Turchynov are meeting in Kiev.
13:15 Polish foreign minister Radoslaw Sikorski has met with Chinese foreign minister Wang Yi who agrees that Ukraine's territory should be respected.
13:05 UK Prime Minister David Cameron has given his strongest indication yet that the forthcoming G8 meeting, held in Russia, will be postponed in a continuing stand-off over Moscow's intervention in Ukraine.
Cameron says it is "hard to see" how the meeting of the group can proceed ahead in Sochi in June, and insists "nothing should be off the table" in terms of sanctions.
12:57 Footage of women protesters being pushed and having their signs ripped by pro-Russian men today in Simferopol has emerged.
12:50 Russian snipers remain in Sevastopol harbour.
12:29 Ukraine's premier told the Associated Press that Crimea must remain in Ukraine, but may get more autonomy.
12:25 The EU has published the remarks by President Barroso on Ukraine, detailing a €11bn aid package to Kiev.
Here is the full text:
12:23 Russian president Vladimir Putin remains among the nominees for the 2014 Nobel Peace Prize despite the ongoing conflict in Ukraine.
Putin's name was first put forward for the prestigious prize in October by an advocacy group, citing his role in preventing a US air raid on the Syrian regime following a chemical attack on its citizens last August.
12:22 A classic Seinfeld clip that describes Ukraine as "weak" and "feeble" has seen a surge in popularity since the unfolding crisis escalated.
The clip features characters George Costanza and Cosmo Kramer playing a game of Risk on New York's subway when Kramer reveals his intention to "invade" Ukraine.
Here you find the related video and some more info.
12:18 Operations on the International Space Station between Russia and the United States will continue unaffected by Russia's involvement with Ukraine, according to Nasa chief Charlie Bolden.
"I think people lose track of the fact that we have occupied the International Space Station now for 13 consecutive years uninterrupted, and that has been through multiple international crises," Bolden said.
"I don't think it's an insignificant fact that we're starting to see a number of people with the idea that the International Space Station be nominated for the Nobel Peace Prize."
11:51 Kerry said it is regrettable that Russia didn't attend for a meeting of the so-called Budapest agreement group held this morning in Paris.
11:44 Here are a few pictures from Donetsk, eastern Ukraine, where police re-took control of the local government building after it was stormed by pro-Russian demonstrators over the weekend.
11:30 The President of the EU Commission, Jose Barroso, has tweeted some details of the aid package:
11:28 A top official said the EU will provide Ukraine $15 billion as part of an aid package in loans and grants, AP reports.
11:25 Speaking at a fundraiser in California, Hillary Clinton said that tactics implemented by Russia in Crimea are reminiscent of those used by Nazi Germany before World War II.
Read more here: Ukraine Crimea Crisis: Hillary Clinton Compares Russian President Vladimir Putin to Adolf Hitler
11:16 William Hague tweeted:
11:05 Here is a photo of US Secretary of State John Kerry hosting the Budapest Memorandum Ministerial meeting with Ukrainian Foreign Minister Andrii Deshchytsia and British Foreign Secretary William Hague at the U.S. Ambassador's Residence in Paris.
The Budapest Memorandum is a treaty concerning the nuclear disarmament of Ukraine signed in December 1994 by Ukraine, Russia, the US, and Britain.
The signatories agreed to respect Ukraine's independence and sovereignty, among other things.
11:01 UK foreign secretary William Hague said there will be costs for Russia if the Kremlin doesn't deescalate tensions in Ukraine.
9:35 Lavrov confirms he will meet Kerry in Paris.
9:34 "These are forces of self-defence created by residents of Crimea," Lavrov says about armed troops that have taken over key locations in the southern Ukrainian region.
He says they do not get any order from Russia.
9:33 Lavrov says Ukraine is Russia's top priority.
9:32 Russian Foreign Minister Sergei Lavrov is giving a news briefing with his Spanish counterpart Jose Manuel Garcia-Margallo, in Madrid.
9:16 Russian lawmakers plan to implement retaliatory sanctions targeting assets and bank accounts of US and EU companies if the West imposes economic measures against Russia, le Figaro newspaper reported.
9:05 A source at the Russian Foreign Ministry has confirmed that Foreign Minister Sergei Lavrov and US Secretary of State John Kerry will meet today.
"Sergei Lavrov and John Kerry will meet in Paris today to discuss the situation in Ukraine," the source told Itar-Tass news agency.
8:54 Ukrainian police say they are evacuating the regional government building in Donetsk that was occupied by protesters, Reuters reports.
Other reports suggest the Ukrainian flag has replaced the Russian one that was flown atop the building as it was stormed on Saturday.
8:48 British foreign secretary William Hague tweeted: