The world's statesmen have long grappled with the diplomatic problems of Syria and Iran, but neither pose the dangers of the Ukraine crisis.
Ukraine's acting president launched an "anti-terrorist operation" against pro-Russia separatists in the eastern region.
A cross-examination of Oscar Pistorius ended with the prosecutor in the murder trial giving a stark summary of how he shot his girlfriend.
A desperate search is continuing for ferry passengers in South Korea, many of whom were children on a school trip, after a ship capsized.
Safety announcements were confused with some told to jump in the water and others were told to stay where they were as the ship started tipping over. Six bodies have been found.
The ferry set sail on a 14 hour journey from Incheon to Jeju island late last night. It capsized near the island of Byeongpoong. It was carrying 429 passengers and 30 crew.
Ukraine's foreign minister Andriy Deshchytsia has said the withdrawal of Russian troops from the country's eastern borders and Crimea will be the delegation's main demand at the upcoming Geneva conference.
The crisis talks between Russia, Ukraine, the European Union and the US are set to begin tomorrow.
"Our position at these consultations is first of all to demand the end of support by Russia of the terrorist groups which are active in the eastern regions of Ukraine," Mr Deshchytsia said at a press conference.
"Besides we will demand from the Russian Federation to condemn such terrorist actions and to withdraw troops which are amassing by the eastern borders of Ukraine".
Washington does not anticipate a breakthrough with Russia over the Ukraine crisis at tomorrow's Geneva conference, Reuters reported, citing unnamed US officials.
The officials said it was reasonable to assume that more sanctions would be imposed against Russia if there was no progress at the meeting.
They believe Russian President Vladimir Putin envisions a federalist Ukraine that would allow Moscow to veto its decisions.
The White House says it is appropriate for the Ukraine government to take action to restore law and order in the country.
It also urged Kiev to continue to to do so in a "measured and responsible" way.
White House spokesman Jay Carney told reporters travelling on Air Force One that Kiev had responded with "admirable restraint" to destabilising actions by armed pro-Russian separatists.
Separatists flew the Russian flag on armoured vehicles taken from the Ukrainian army today in a bid to humiliate Kiev's operation to recapture towns in the eastern region.
Six armoured personnel carriers were driven into the rebel-held town of Slaviansk to shouts of "Russia! Russia!"
ITV News Europe Correspondent Emma Murphy reports
Students on board the capsized ferry Sewol were told told to stay still as the ship sank off the coast of South Korea today.
Mobile phone footage taken inside the vessel shows the youngsters sat slumped on the floor in their life vests.
The former chairman of the collapsed Anglo Irish Bank has been found not guilty of illegal lending and providing unlawful assistance to investors.
Sean FitzPatrick was put on trial in Dublin in January along with two other former executives of the bank, in the first such case since the banking crisis cost taxpayers more than €60 billion (£49 billion).
The jury will continue deliberations tomorrow on the charges against Pat Whelan and Willie McAteer, who were also accused of providing loans to investors known as the "Maple Ten".
Whelan and McAteer have pleaded not guilty.
Family members of those missing from the capsized South Korean ferry Sewol have gathered at a port on Jindo Island awaiting the arrival of rescue teams.
Rescue workers will use flares to help light up the seas as they continue to look for survivors into the night, but divers have been forced to stop searching inside the ship, which is now almost completely submerged, until daylight.
The ship set sail from the port of Incheon on Tuesday evening with 462 passengers on board. Nearly 340 are believed to have been from the same high school near the capital Seoul, on their way to Jeju island for a field trip.
A young couple have been pictured taking a "selfie" at Kiev's central Independence Square in front of the barricades and burned out buildings.
The square has been at the centre of anti-government protests leading up to the ouster of then-president Victor Yanukovich and beyond.