Prime Minister David Cameron said: "This is a massive vote of confidence in our long-term economic plan.
"This investment is going to create lots of new jobs and opportunities, meaning more financial security and peace of mind for families and a more resilient economy for our country."
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Weather set to improve with plenty of sunshine by Saturday
Tony Davis 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.