An independent investigation into the disappearance of 43 Mexican students nearly a year ago has rejected the government’s account of events.
The government investigation said the bodies were burned at a rubbish dump, but the Inter-American Commission on Human Rights said it had found no evidence to support the claim.
The Mexican government has now ordered a new investigation.
Relatives have always rejected the official investigation, accusing the authorities of covering up the alleged involvement of high-ranking officials and possibly the army in the killings.
After a 6-month investigation, the Washington-based IACHR released a report of nearly 500 pages, urging the government to continue looking for the missing students.
A Peruvian fire expert, hired by the commission from the University of Queensland in Australia, said it would have required 13 tonnes of tyres, 20 tonnes of wood, 13 tonnes of diesel and 60 hours to cremate the bodies.