A local search party group out of Nogales, Mexico, began searching for Nancy Guthrie this week after fielding an anonymous tip about her remains being buried in the Mariposa area near the Arizona-Mexico border.The tip and subsequent search party for Guthrie’s remains comes more than four months after she was abducted from her home outside Tuscon, Arizona, on Feb. 1. The abduction of Guthrie, the mother of Today host Savannah Guthrie, has sparked national questions and a massive investigation, with the search effort now spreading internationally into Mexico.The search in Mariposa currently appears to be independent of the country’s government, as the private group Buscando Corazones Nogales, which specializes in missing-person searches, is in charge, according to multiple reports.

Ramona Guadalupe Ayala Ortiz, the leader of the volunteer search collective, announced that the group had received the anonymous tip, which said Guthrie’s body was buried in a grave near a stream in Mariposa, according to Sonora-based newspaper El Imparcial.

“We are aware of reports regarding an anonymous tip related to the Nancy Guthrie investigation that was provided to a group in Mexico. At this time, we have not been contacted by Mexican authorities,” the Pima County Sheriff’s office, which has been largely coordinating the investigation into Guthrie’s abduction in the U.S., said in a statement on X.