Thousands march for missing Mexico students
The parents of 43 Mexican students who went missing five months ago have been leading a march in Mexico City to call for a full investigation, the BBC reported.
Thousands of people have joined the protest, carrying banners with pictures of the missing trainee teachers.
Prosecutors say the students were arrested by corrupt police officers after a demonstration in the town of Iguala on 26 September.
They were handed over to a local criminal gang, who killed them.
The students attended a teacher training college in Ayotzinapa, in south-western Guerrero state.
The college has a history of left-wing activism but it is not clear whether the students were targeted for their political beliefs.
Attorney General Jesus Murillo Karam said the criminals burned the bodies in a nearby waste disposal site and scattered their ashes in a local stream.
Forensic experts in Austria carried out DNA tests on bone fragments found in a bag in the area and managed to identify one of the 43 students.