An international panel has accused Mexico’s government of obstructing an investigation into the fate of 43 students believed massacred in 2014.
In a report, the experts say they were blocked from re-interviewing suspects, inquiries had not been followed up and there had been delays in gathering evidence.
The panel was commissioned by the Inter-American Commission on Human Rights.
Mexico’s government says corrupt police handed the student teachers in the southwestern city of Iguala over to a drug gang and their bodies were incinerated.
Responding to the experts’ report, Mexico’s Deputy Attorney General, Eber Betanzos Torres, said: “The Iguala Case represents the most comprehensive criminal investigation in the history of law enforcement in Mexico.
“The families of the students and the government are on the same side and we worked for the same objective: to know what happened to the students and punish each person responsible.”
But the experts have cast doubt on the government’s version of events.
The case of the missing students is Mexico’s most notorious human rights case in recent years and has put the spotlight on the country’s drug war and brutal violence.