New graves found in Mexico in hunt for missing students

People searching for 43 missing Mexican students say they have found new burial pits.

The 43 have been missing since they clashed with police almost three weeks ago in the town of Iguala.

Vigilantes who joined the search said they had found six new burial pits, at least two of which contained what they believe are human remains.

The search had been stepped up after forensic tests showed bodies found on 4 October were not those of the students.

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