The company formerly known as BAA is to sell Stansted airport to the Manchester Airports group for £1.5 billion.
The deal, announced late this evening, will mean that BAA - now known as Heathrow Airport Holdings - will be responsible for just four UK airports compared with its original seven.
The remaining ones are Heathrow, Southampton, Aberdeen and 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.