Authorities began investigating the site after receiving an anonymous tip on April 25.

Search collective member Cecilia Flores said the scale of the discovery continues to grow.

“So far, I believe there are around 60 bags, as well as three complete bodies and many signs of charred remains,” said Flores, who is part of the Searching Mothers of Sonora collective.

Flores added that the anonymous source claimed some nearby homes may have been built over buried remains.

“The anonymous source even says some houses were built over the bodies, and that many remains may be buried beneath them. So how do we deal with that? How do we tell someone to tear down their home because one of the bodies may be underneath it?” she said.

Members of the search groups also criticised Mexican authorities, accusing them of failing to provide enough support to families searching for missing relatives.

“They can’t stop the World Cup, but they can stop denying support to the many mothers and grandmothers who deserve and need it,” said Adriana Ornelas, another member of the collective.

The discovery adds to the growing number of clandestine graves uncovered in Jalisco in recent years, highlighting Mexico’s ongoing crisis of disappearances and unidentified remains.

Several of the major burial sites discovered in the region are located near Guadalajara International Airport and Estadio Akron, one of the venues scheduled to host World Cup matches and international visitors during the tournament.