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The European Union has urged Russia to use its "leverage" with pro-Russian separatists to stop the violence being seen in eastern Ukraine.
A spokesman for EU foreign policy chief Baroness Ashton said:
"We call on all parties to the joint Geneva statement on Ukraine to ensure its terms are fully implemented, and in particular on Russia to use its leverage to ensure an immediate end to kidnappings and killings in eastern Ukraine."
British detectives investigating the disappearance of Madeleine McCann are poised to stage operations on Portuguese soil.
Investigators from Scotland Yard are waiting for an official agreement later this week, and hope to begin "operational activity" linked to the case in the near future.
Deputy Assistant Commissioner Martin Hewitt said he hoped that Portuguese and British officers could act soon, although he would not reveal what the operations will involve.
He said: "I am cautiously optimistic that in the not-too-distant future we are going to start to see activity."
Police also revealed that they are looking at five more cases in which young British girls were sexually assaulted during holiday home break-ins by a lone intruder in the Algarve.
One of these was in 2005 on a 10-year-old girl in Praia da Luz, where Madeleine, then three, vanished two years later.
Teenage cancer patient Stephen Sutton has succeeded in raising his charity target of £1 million after donations for the 19-year-old flooded in this morning.
Donations to Stephen's chosen charity, the Teenage Cancer Trust, passed £750,000 overnight after he posted a message on his Facebook page revealing that his condition had deteriorated.
The next quarter of a million pounds was raised in just a few hours this morning, while Stephen remained in hospital fighting for his life, and funds continue to pour in on his Just Giving page.
The teenager - who was diagnosed with bowel cancer aged 15 - initially wrote on his 'bucket list' last year that he aimed to raise £10,000 for the Teenage Cancer Trust.
Foreign Secretary William Hague has told his Russian counterpart, Sergei Lavrov, that Russia needs to take "visible steps" to put in place the agreement reached in the multilateral talks in Geneva last week.
Have spoken to Foreign Minister Lavrov to urge Russia to take visible steps to implement Geneva #Ukraine agreement
The parents of three children found dead at a house in south London have been named locally as Tania and Gary Clarence.
A neighbour, who did not wish to be identified, said the father works in the City and the mother was a full-time carer for her children.
David Cameron has delivered his St George's Day message, urging the public to reflect on England's role in sustaining "the world's greatest family of nations, the United Kingdom".
The Prime Minister said the English patron saint's day had been overlooked "for too long" but people were now comfortable coming together to celebrate the nation's achievements.
Flowers and soft toys have been left outside a property in New Malden where a four-year-old girl and two boys aged three were found dead on Tuesday night.
Pro-Russian separatists are holding an American journalist in the Ukrainian town of Slaviansk.
Simon Ostrovsky, who works for Vice News, is apparently being held in the local headquarters of the Ukrainian security services, which have been seized by pro-Russian forces.
A spokeswoman for the insurgents said Mr Ostrovsky is "fine" but is "suspected of bad activities" and is under investigation, according to the Associated Press.
The Joint Agency Coordination Centre have reported that the West Australian Police have attended a report of material washed ashore, 10 kilometres east of Augusta.
The Australian Transport Safety Bureau are also examining photographs of the material to identify if there is any relevance to the search of missing flight MH370.
Possible debris found washed up on Australian beach. Not confirmed as relating to #mh370 but been taken away for analysis.
The ATSB has also provided the photographs to the Malaysian investigation team.