A/HRC/16/22 (c) On 7 July, two young men disappeared in Medellín (Antioquia) and were found dead the following day. According to information collected by OHCHR-Colombia, the victims had apparently been detained by National Police officers the night before and handed over to a criminal group. (d) In Barbacoas (Nariño), on 12 September, National Police officers shot at a group of persons who ignored or did not hear their order to stop, killing one person and wounding seven others. The police agents apparently mistook them for members of a criminal group. 5. OHRHR-Colombia is monitoring the prosecution of several cases of extrajudicial executions in which the safety of the families of victims and the witnesses is a matter of concern. (a) Reports conducted by the National Police found that at least eight of the mothers whose sons disappeared in Soacha (Cundinamarca) in 2008 and were subsequently reported by the Army as killed in combat in other municipalities around the country, were in situations they describe as “of extraordinary risk”. (b) In Antioquia, Bogotá and Valle del Cauca, among others, complaints were registered of intimidation and threats against witnesses for the Attorney General’s Office or their families, in cases of alleged extrajudicial executions attributed to members of the Army. D. Illegal armed groups that have emerged after the demobilization of paramilitary organisations. 6. It is a matter of concern the expansion and intensity of the acts of violence perpetrated against the population by illegal armed groups that emerged after demobilization of paramilitary organisations, as illustrated below: (a) On 21 March, seven persons, including two children, were victims of a massacre committed in Puerto Libertador (Córdoba) as a consequence of a dispute between Los Urabeños, Los Rastrojos and Los Paisas. On the same day, members of the Águilas Negras allegedly committed a massacre in the same place, killing three boatmen. (b) In El Charco (Nariño), on 1 October, alleged members of Los Rastrojos murdered five members of a family. (c) On 21 March, a 17-year-old girl was killed in Puerto Libertador (Córdoba), presumably by members of Los Urabeños, after she refused to have sexual relations with the leader of the group in that area. (d) In Medellín (Antioquia), on 2 April, a sicario murdered Diego Fernando Escobar Múnera, a judge of the Eighth Criminal Circuit of Medellín. The authorities attributed his death to members of an illegal armed group that emerged after the demobilization of paramilitary organisations. (e) On 11 April, Yolanda Isabel Álvarez Ibáñez, governor of the La Esperanza indigenous cabildo, and her husband were murdered in Montelibano (Córdoba). Authorities have attributed this crime to members of Los Paisas. On 23 November, a 14-year-old boy was murdered in this same municipality, presumably by members of Los Urabeños. (f) In Puerto Rico (Meta), on 12 August, members of the Popular Revolutionary Anti-Subversive Army of Colombia (ERPAC) allegedly murdered a 15-year-old girl, who received over 40 stab wounds. 22