Mokhtar Belmokhtar: Hunt is on for mastermind behind Algeria attack

Special forces are preparing to hunt down the veteran jihadist known as "The Uncatchable" behind the hostage deaths in Algeria. Mokhtar Belmokhtar, who is believed to have masterminded the attack on the Algerian gas plant, is still at large in the Sahara.

The one-eyed militant is thought to have directed the attack from northern Mali, where he formed his Signed-in-Blood Battalion last year after falling out with other leaders of al-Qa'ida in the Islamic Maghreb. British, French and American special forces are readying themselves to search for the world's most wanted terrorist.