The health minister Lord Howe has said the government is "clearly disappointed" over the High Court's decision to quash a decision to reduce services at Lewisham Hospital.
He told ITV News: "We felt that the arrangement involving Lewisham - which I know are disappointing to the people of that area - were right in the interests of the wider population of south east London".
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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.