With hopes of becoming a double agent, Khalife was a fantasist - as well as a genuine security threat.

Nearly 20 years ago, 389 men escaped from an Indian jail, led by a man believed to have planned the breakout.

They escaped by scaling the wall with a ladder, the Portuguese prison service says.

Graham Gomm, who is on remand for burglary, escaped during a hospital visit on Thursday.

Daniel Gee absconded from Kirklevington Prison in Stockton-on-Tees on 27 May.

James Smyth, 57, absconded from North Sea Camp prison in Boston, Lincolnshire on 1 May.

Two officers were killed when armed men attacked a prison van carrying Mohamed Amra in Rouen, Normandy.

Two officers were killed when armed men attacked a prison van carrying Mohamed Amra in Rouen, Normandy.