4 14. The April 20, 2004 brief and its attachments, whereby the Commission reported that “the extremely grave situation at the Urso Branco Prison has deteriorated even more.” The Commission presented a brief from the petitioners as an attachment to its own brief, and pointed out that “as reported in that communication, in recent days a number of inmates at Urso Branco Prison have been murdered, some of them publicly; bodies have been mutilated and body parts have been thrown at authorities and other people present at the scene; apparently there are over 170 people being held as hostages at the prison, all in connection with a riot alleged to have occurred there.” Given the foregoing, the Commission requested that the Court “adopt all urgent measures it deems appropriate to hasten compliance with the provisional measures […]”. Furthermore, the petitioners’ brief, which appears as an attachment to the Commission’s brief, states that on Sunday, April 18, 2004, there was a riot at the prison; it was visiting day, but inmates “did not allow relatives to leave when visiting hours were over.” 15. The April 20, 2004 brief and its attachments, where the petitioners provided information on, inter alia, the murders of inmates and the inmate riot that occurred recently at the prison. This communication contains the same information that the Inter-American Commission submitted as an attachment to its April 20, 2004 brief (supra ‘Having Seen’ 14). 16. The Court’s April 22, 2004 Order, wherein it resolved: 1. To call upon the State to: a) b) c) d) e) adopt all measures necessary to effectively protect the life and personal safety of all inmates at the prison1 and of all persons who enter the prison, including visitors; adjust conditions at that prison to conform to the applicable international standards for protection of human rights;2 submit to the Court an updated list of all persons incarcerated at the Urso Branco Prison, giving the names of released and incoming inmates and showing the number and names of the inmates who are serving sentences and those who have not been convicted, and report whether convicted inmates and unconvicted inmates are kept in separate sections;3 investigate the facts that necessitated adoption of these provisional measures, so as to identify those responsible and punish them accordingly; this includes the investigation of the egregious events that occurred at the Urso Branco Prison after the Court issued its Orders of June 18 and August 29, 2002;4 submit to the Court, by no later than May 3, 2004, a report on: i) compliance with and implementation of the measures indicated in the preceding subsections of this operative paragraph; ii) the events and problems reported in the Commission’s April 20, 2004 brief and attachments thereto, particularly on the serious uprising now gripping the prison, and whether any of the supposed 1 Cf. Operative paragraph one of the June 18, 2002 Order and operative paragraph one of the August 29, 2002 Order. 2 Cf. ‘Considering’ ten and operative paragraph six of the August 29, 2002 Order. 3 Cf. Operative paragraph four of the June 18, 2002 Order and operative paragraph seven of the August 29, 2002 Order. 4 Cf. Operative paragraph two of the June 18, 2002 Order and operative paragraph four of the August 29, 2002 Order.