The Queen and the Duke of Edinburgh were accompanied by Prime Minister David Cameron and Defence Secretary Philip Hammond at the naming ceremony of Britain's largest ever ship.
Hundreds of workers, who helped build the HMS Queen Elizabeth, have joined military Chiefs and dignitaries at Roswyth Dockyard in Scotland to witness the Queen's christening of the warship.
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An Independence Day event at a UK base has been cancelled by the US Air Force over security fears.
British firms predict the economy should sustain a "solid" pace of growth for the rest of the year thanks to lower oil prices and inflation.
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