A representative of the main anthropology agency in Mexico says the remains found in a southern cave were part of a cemetery from 1300 years ago, according to the Washington Post.
According to the Houston Chronicle, the Chiapas state prosecutor's office said authorities found the remains of 167 people on Friday on the Nuevo Ojo de Agua ranch, which is a region where Central American migrants pass through while heading north. Local farmers had come across the cave last week and had alerted the authorities, according to the Post.
Emilio Gallaga of the national anthropology institute says the first test results show the remains come from a still-unspecified pre-Hispanic community dating to the eighth century, according to the Post. He says clay artwork that could have come from a pre-Hispanic group was also found in the cave, the Chronicle said.