UN Secretary General Ban Ki-Moon has said he is confident that weapons inspectors can get evidence about an alleged chemical attack in Damascus despite the passage of time, a spokesman said.
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Another cold, frosty and foggy night for many. Northern and western areas will see thickening cloud, patchy rain and milder temperatures.
Temperatures have already plunged to -12C in some parts of the UK this winter - but Thursday could be the coldest day yet.