George Osborne has said Moody's message is "explicit" to carry on with austerity.
He says "we can either abandon our efforts to deal with debts" or we can "redouble our efforts" and make a brighter future for our children.
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Tony Davies was the first civilian to reach Pc Palmer after he was stabbed during the Westminster attack.
Defiant Londoners put on a show of solidarity for the victims of the Westminster terror attack at a vigil in their honour.
Weather set to improve with plenty of sunshine by Saturday