David Cameron on French nuclear energy deal
David Cameron and Nicolas Sarkozy have hailed the strong ties between the UK and France after agreeing to work more closely on military operations and civil nuclear power.
The British prime minister was in Paris for a summit with President Sarkozy in the Elysee Palace.
The two leaders have signed an agreement to co-operate on nuclear energy which will pave the way for a new generation of nuclear plants in the UK.
Rolls-Royce is expected to win a £400m ($632m) share in the building of the first of the power plants, and plans to build a factory in Rotherham to meet orders resulting from the deal.
France's Areva will supply the core of the nuclear reactors and Rolls-Royce will supply other engineering work.
Mr Cameron said the two countries were working together to boost their economies.