Remains of 167 bodies found in cave
Mexican authorities have found the remains of 167 people in a southern Mexican cave, and forensic experts believe the remains are at least 50 years old, according to a statement from Chiapas state prosecutors.
The statement said the remains were found on Friday on the Nuevo Ojo de Agua ranch in an area frequently used by Central American migrants travelling north.
It said there were no visible signs of violence on the remains, which "break easily".
The statement said authorities will "not discard any line of investigation".
The remains were discovered on top of each other in the cave.
They have been moved to the state capital of Tuxtla Gutierrez for examination, the employee said.
Mass graves have been found in the past two years mainly in northern Mexico containing the bodies of dozens of migrants and others allegedly killed by drug cartels.