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President Obama reaffirmed the US's "unwavering commitment" to NATO defence, during a call with Baltic leaders, the White House said in a statement.
Scotland Yard is to request a private meeting with the parents of murdered teenager Stephen Lawrence to share the findings of the criminal investigation into alleged misconduct by undercover officers.
The force is writing to Doreen and Neville Lawrence in order to discuss Operation Herne, the probe into Scotland Yard's Special Demonstration Squad (SDS) - the top secret unit that was up and running for nearly 40 years.
Vietnam dispatched two navy boats from Phu Quoc island and sent two jets and one helicopter from Ho Chi Minh City to search for a missing Malaysian airliner.
In video provided by Vietnamese newspaper Tuoi Tre a search and rescue helicopter can be seen taking off from Tan Son Nhat International Airport in Ho Chi Minh City.
A still photograph provided by the newspaper showed what appears to be an oil slick in an area of sea off Vietnam where the aircraft is thought to have crashed.
The Organisation for Security and Cooperation in Europe representative Dunja Mijatovic has condemned reported closures of TV channels in Crimea, after military observers were forced to turn back earlier today.
Media freedom under siege in Crimea, Ukraine, says OSCE rep Mijatovic (.@osce_rfom)- condemns closure of TV channels, attacks on journalists
Military assessment visitors from OSCE States returning to Kherson to plan next steps after being denied entry to Crimea at Armyans'k today
The OSCE observers have been unable to enter Ukraine's Crimea peninsula for the second day in a row.
Tomorrow should be another fine, bright day again with unbroken blue skies and sunshine.
The glitch will be cloudy, breezy and damp conditions for western Scotland and Northern Ireland, the rain pepping up later. Eastern Scotland will get away with a better day.
Away from the cloud and rain, it will be remarkably mild for the time of year.
Across the south-east it will be warm for early March with highs of 18C or possibly 19C - rivalling temperatures across southern Europe and the Med.
We'll be warmer than parts of Italy and Greece.
President Obama made a series of phone calls on Saturday to world leaders about the ongoing crisis in Ukraine, including Prime Minister David Cameron, French President Francois Hollande, and Italian Prime Minister Matteo Renzi, the White House said.
He also held a conference call about the situation with the presidents of Lithuania, Latvia and Estonia, White House spokesman Josh Earnest said in a statement.
The recent spell of warm weather is set to continue tomorrow - with top temperatures in the capital set to beat holiday spots in Spain and the South of France.
Highs are expected to reach 18C in London tomorrow - whereas Majorca will see around 17C and luxury hotspot St Tropez just 15C.
St James' Park saw the hottest temperature of the year yesterday at 16.9C.
Overnight tonight warm winds from the south will keep temperatures mild, with clear skies expected all day tomorrow across the capital.
French President Francois Hollande has said he agrees with President Obama that Russia must take steps toward pulling out troops sent into Ukraine's Crimean peninsula or face worse relations with the world community.
An official statement said the two men spoke by phone today and agreed that a planned March 16 referendum in Crimea - home to many pro-Russian citizens -"lacks any legal basis".
The statement said that unspecified "new measures" would be taken unless progress was made on such issues.
The Deputy Prime Minister has said he would be concerned about any move which would "lessen the signal" that people should pay the TV licensing fee, after plans revealed that the Government was considering easing pressure on courts.
He said: "We will look at it but I think you need to be aware that if you have a 1% drop in the payment of the licence fee, that would lose you money which at the moment would cover the money for 10 local radio stations.
"So it's important that people do pay their licence fee and I don't want to see any relaxation of that because I'm a great fan of the BBC. I think a lot of people rely on the BBC locally and nationally for their news and for a lot else besides.