Authorities in the Mexican state of Sonora say they have not received any formal request from U.S. officials to assist in the kidnapping investigation of Nancy Guthrie, despite a U.S. media report indicating that the FBI had contacted Mexican authorities.

The Sonora State Prosecutor’s Office said Wednesday it has not received any official request for collaboration, assistance, or exchange of information from U.S. authorities or from Mexico’s federal government. Sonora borders Arizona, where the abduction occurred.

Earlier Wednesday, Fox News Digital reported that the FBI had reached out to Mexican authorities in connection with the case, amid speculation that Guthrie may have been taken across the border.

However, on Tuesday, Pima County Sheriff Chris Nanos told Fox News that investigators do not believe Guthrie was transported to Mexico.

Guthrie, 84, is the mother of NBC “Today” co-anchor Savannah Guthrie. She was abducted earlier this month from her home in the Catalina Foothills area near Tucson, Arizona.

The FBI has released images of a masked individual seen at Guthrie’s front door the night of the abduction. Authorities described the suspect as a man carrying a black Ozark Trail Hiker Pack backpack and wearing a handgun holster.

Federal officials have offered a reward of up to $100,000 for information leading to Guthrie’s recovery or to the arrest and conviction of those responsible.