French conservatives voting to choose presidential candidate

French conservatives are choosing their nominee for next year's vital presidential election from among two former prime ministers with deep experience in government and differing views on how to prevent more terror attacks.

The contenders in the conservative bloc's primary run-off - Francois Fillon, 62, and 71-year-old Alain Juppe - are both high-profile leaders of the centre-right Republicans party. Mr Fillon, who wants to focus on fighting Islamic extremism, is judged by many to be the frontrunner.