Shares in French group Areva were up sharply on Monday after the world's biggest nuclear operator said it would be taking part in a US deal to manage atomic waste.

In late morning trade, Areva was up 4.62 percent at 412.02 euros in a slightly firmer market. Its shares are down more than 47 percent so far this year as a result of the rout of the financial markets.

The US nuclear waste management contract is worth 2.5 billion dollars (3.2 billion euros) over five years and calls for the construction of a facility in Nevada.