Algerian journalist Mohamed Arezki Himeur says Mr Belmokhtar lost his left eye in fighting with government troops in the 1990s and now wears a false eye.

BBC: Profile: Mokhtar Belmokhtar

Detectives want to talk to Mr Cregan, who has one eye but sometimes wears a black false eye, in connection with Mark Short's death.

BBC: Clayton gun and grenade murder: Man arrested