Former Argentine naval officer Alfredo Astiz has been jailed for life for crimes against humanity during military rule in 1976-83.

Astiz - known as the "Blond Angel of Death" - was found guilty of torture, murder and forced disappearance.

Among his victims were two French nuns and the founders of the Mothers of the Plaza de Mayo human rights group.

Eleven other former military and police officers were also given life sentences for crimes against humanity.

Four others were jailed for between 18 and 25 years.

All worked at the Naval Mechanical School in Buenos Aires - known as Esma - which was the biggest secret torture and killing centre set up by the military during what became known as the "Dirty War"....