“Today” show host Savannah Guthrie on Saturday said on social media that her family was “desperate” and “begging for help” in the disappearance of her mother, a day after authorities released two ransom notes including one saying that she had died.

Authorities have released an early ransom note in the investigation into the disappearance of Nancy Guthrie in hopes that someone will recognize the writing style. A second note that was also released Friday said Guthrie died shortly after she was kidnapped and “is buried in nature now.” Both notes initially were sent to a Tucson television station days after the 84-year-old mother of “Today” show host Savannah Guthrie went missing from her home outside Tucson on Feb. 1. Authorities have not said whether Nancy Guthrie is still alive. The Pima County Sheriff’s Department said “we believe these distinctive linguistic characteristics may be recognizable to someone who knows or has interacted with the notes’ writer.”