Shoppers in England will face a 5p charge for plastic bags under a new government plan to be announced by Nick Clegg.
The scheme, intended to discourage the use of environmentally-damaging carrier bags, will be set out by the Deputy Prime Minister this weekend at the Liberal Democrat conference in Glasgow.
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Cloud and outbreaks of rain will ease away eastwards during the morning, clearing the east coast around midday with sunny spells developing.
Police and emergency services are attending the scene.
Rebel-held east remains at risk while the pumping station supplying the western part of the city is once again in operation.