A trial is under way in Argentina for a Roman Catholic priest accused of involvement in the country's infamous "Dirty War."

Defendant Christian Von Wernich's trial began Thursday at a court in the city of La Plata.

On Wednesday in Spain, the Supreme Court increased the jail sentence of former Argentine navy officer Adolfo Scilingo, who was convicted of crimes against humanity during the "Dirty War." Scilingo's sentence was extended from 640 years to 1,084 years.

He was convicted in 2005 of participating in flights in which drugged, naked detainees were thrown from planes during Argentina's military dictatorship.

Official estimates say some 13,000 people died or disappeared during the "Dirty War" era, which lasted from 1976 to 1893.

Some information for this report was provided by AFP and Reuters.