General Eduardo Cabanillas has been sentenced to life imprisonment in Argentina, after being found guilty of murder, torture and illegal imprisonment.
The general ran the Automotores Orletti prison in Buenos Aires, where 200, mainly foreign born, left wing activists were taken to be tortured and killed during the military rule of the country. The prison gained its name because it was disguised as a workshop.
Three other former intelligence operatives were sentenced to 70 years between them.
All four of those sentenced were part of an international operation called Operation Condor, in which officials from a number of South American governments agreed to use operatives to root out leftist activists and agitators across the continent.
During the period of military rule in Argentina around 30,000 were killed or "disappeared".