Russia's upper house of parliament has approved President Putin's request for Russian forces to be used in Ukraine.
Prime Minister David Cameron warns against outside military intervention in Ukraine and says the aim must be to "lower, not escalate, tensions".
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Russia approves the deployment of troops in Ukraine, prompting Kiev to put its army on full alert as international leaders express alarm.
Arsenal fall four points behind Premier League leaders Chelsea after Jonathan Walters's penalty earns Stoke victory.
Andre Schurrle scores a hat-trick at Craven Cottage as Chelsea go four points clear following Arsenal's defeat by Stoke.
Liverpool strengthen their title challenge as victory over Southampton lifts them into second in the Premier League.
Historic changes to the Labour Party's links with the unions are approved at a special conference of members by an overwhelming majority.
UK Foreign Secretary, William Hague, has said that he is "concerned" over the escalation of tensions in Ukraine.
The Aquatics Centre used in the London 2012 Olympics and Paralympics has reopened for the first time since the Games.
The Welsh government should have powers over policing, an influential report into the future of devolution is expected to say on Monday.
The Aquatics Centre used in the London 2012 Olympics and Paralympics reopens for the first time since the Games.
Labour MP Jack Dromey has accused the the Daily Mail newspaper of "dirty gutter journalism" over its reporting of what it says are historical links between him and a campaign group, the Paedophile Information Exchange.
Jack Dromey accuses the Daily Mail of "gutter journalism" and insists he challenged a paedophile rights group affiliated to a civil liberties organisation he worked for.
Campaigners stage protests in Inverness and Culloden against a proposed housing development next to the historic battle site.
Substitute Romelu Lukaku scores a late winner for Everton against West Ham, keeping alive the Toffees' European hopes.
Welsh people at home and abroad celebrate St David's Day.