Mexican authorities on Sunday said that mounting evidence and initial DNA tests confirmed that 43 trainee teachers who were abducted by corrupt police 10 weeks ago were incinerated at a garbage dump by drug gang members.

Attorney General Jesus Murillo told reporters that one of the students had been identified by experts in Austria from a bone fragment in a bag of ash and bits of burned tire found in a river where drug gang members said they tossed the remains.

"This scientific proof confirms that the remains found at the scene coincide with the evidence of the investigation," Murillo said. "We will continue with the probe until all the guilty have been arrested."