In this document, the US Ambassador to Argentina reports on the return to Uruguay of PVP militants exiled in Argentina. According to the UNHCR, 12 out of 14 of the names on the list refer to Uruguayan refugees kidnapped in July and September 1976 and at least 40 more Uruguayans were disappeared during this period. The US Ambassador contends that the evidence and reports available to the Embassy convincingly show that the kidnappings of Uruguayan refugees in July and September were carried out by Uruguayan and Argentine security forces, acting clandestinely and in cooperation. 

This telegram from the US Embassy in Uruguay to the State Department reports on the propaganda campaign by the Uruguayan military regime announcing the capture on 28 October 1976 of 62 militants belonging to the Party for the Victory of the People (PVP). 

In this telegram, the US Embassy in Montevideo informs the State Department in Washington that rumours are circulating among the intelligence community regarding the alleged kidnapping of Uruguayan exiles, including the daughter of Uruguayan politician, Zelmar Michelini, in Argentina in July 1976. The Argentine security forces turned over some of the detainees to the Uruguayan security forces for questioning.

This document records a meeting held at the UNHCR Headquarters in Buenos Aires, during which the Regional Representative for the UNHCR, Robert Muller, reviews the situation of refugees in Argentina since the military coup in March 1976. Muller reports that high-profile cases including the death of Uruguayan exiles Gutierrez Ruiz and Zelmar Michelini and former Bolivian President Torres have raised alarm among the exile community in Argentina. He further mentions the potential operation of Paraguayan security forces in Argentina against opponents of the Paraguayan military regime.

Amnesty International urges the Argentine government to investigate allegations that Uruguayan security forces had kidnapped Uruguayan citizens in Buenos Aires. These allegations come after Uruguayan former trade union activist Washington Perez testified before Amnesty International.

In this document, the US Embassy in Buenos Aires briefs the State Department in Washington that large numbers of refugees, mainly Uruguayan and Chilean nationals, have left Argentina over the past few months. A new piece of government regulation on 'illegal aliens' is raising alarms again.

This report published by Amnesty International provides an overview of the situation of refugees in Argentina prior to and following the military coup. It mentions the suspected operation of Uruguayan security forces on Argentine soil under the so-called 'Plan Mercurio' targeting Uruguayan leftists in Argentina. Argentine and Uruguayan security forces are suspected of jointly operating a clandestine detention centre in Argentina.

This cable from the US Embassy in Buenos Aires discusses disappearances in Argentina. It notes that a two-year-old Uruguayan boy who had been taken with his parents on 13 July 1976 was quietly returned to relatives, whilst a second boy is still missing. In parallel, on 26 August 1976, the wife of poet Juan Gelman filed a writ of habeas corpus their his son, daughter, and daughter-in-law.  

This detailed and lengthy telegram from the US Embassy in Buenos Aires to the State Department expresses concern regarding the human rights situation in Argentina. The Embassy mentions that the Government of Argentina has admitted to killing 450 terrorists since the military coup but the real number remains unknown. 

This is a letter addressed to the Argentine dictator Videla from the Uruguayan politician, Wilson Ferreira who was a key non-leftist opponent of the Uruguayan dictatorship from his exile in Argentina. The letter follows the discovery of the bodies of Zelmar Michelini, Hector Gutierrez Ruiz, and two other unidentified Uruguayans. The handwritten date on the document is 24 August 1976, but the letter is likely to have been written in late May 1976, as it recounts the events surrounding Michelini and Gutierrez Ruiz's murders.