Remains said to be human ; number of dead unknown , officials say . Command center among those used in Argentina 's 1976 - 1983 ` ` Dirty War '' Tens of thousands said to have been tortured , killed during ` ` Dirty War ''
Remains believed to be human ; number of bodies unknown , officials say . Detention center among those used in Argentina 's 1976-1983 `` Dirty War '' Tens of thousands said to have been abducted , killed during `` Dirty War ''