Mexico agreed on Friday to let the Inter-American Commission on Human Rights (IACHR) again monitor its widely criticized investigation into the disappearance of the 43 Ayotzinapa students.
The international agency will conduct at least three visits to Mexico.
The U.S. government congratulated the international expert group which investigated the case.
Claudia Paz and Ángela Buitrago claimed that the purpose of this campaign is to affect the parents of the 43 missing students of Ayotzinapa, the group of independent experts itself and the IACHR.
English06/04/2016
UN experts urge Mexico to counter current smear campaign and openly support right defenders
The experts also noted that several organizations and experts involved in the investigations of the case of the forcibly disappeared students from Ayotzinapa have been objects of campaigns to discredit their work and the results of their investigations.
The Argentine Forensic Anthropology Team said the latest investigation by a team of experts "neither confirms nor denies" the official version of what happened to the Ayotzinapa students.
Two of the five members of the group of experts investigating the disappearance of 43 students in Iguala urged the European Union to "support" their work because they are facing obstacles to clarify the case.
In response to the report, Mexico's federal government said that it does not reflect the general situation of Mexico and is based on wrong premises and diagnoses.
The purpose is to prove or disprove the hypothesis that the bodies of the missing students of Ayotzinapa were cremated at the dump of Cocula.
Julio César Mondragón's remains will undergo new testing.