Deputy Prime Minister Nick Clegg has said that "it's not a bad thing" to honour peace in the European Union with the Nobel Peace Prize.
The Liberal Democrat leader said: "It's a not a bad thing from time to time to recognise that we've had 70 years of peace in a continent that had been racked with conflict and war for much of the last century."
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A cloudy start to the day with top temperatures of 18C (64F).
Immigration levels may need to rise, David Davis has said as he refused to commit to a cap on the number of EU citizens coming to the UK.
MSPs are expected to back Nicola Sturgeon's call for a second independence referendum in a vote at Holyrood on Tuesday.