NBC Nightly News' Tom Llamas gave viewers another major update on the disappearance of Savannah Guthrie's 84-year-old mom, Nancy Guthrie, who has been missing for 25 days

The 'Today' anchor's 84-year-old mother was last seen on Jan. 31, the day before she was reported missing

Savannah Guthrie shared a new emotional appeal on Instagram in the search for her missing mother.

Today show host Savannah Guthrie posted a video Tuesday announcing a $1 million reward from the family for the return of her mother, Nancy Guthrie.

Savannah Guthrie's sorority sisters at the University of Arizona are sharing a message of hope with the TODAY anchor amid the ongoing search for her 84-year-old mother, Nancy Guthrie

Here's the latest.

Nancy Guthrie, 84, was last seen at her home just outside Tucson on Jan. 31 and was reported missing the following day. Authorities believe she was kidnapped, abducted or otherwise taken against her will. Drops of her blood were found on the front porch, but authorities haven’t publicly revealed much evidence.

Hoda Kotb will continue to host the Today show amid Savanna Guthrie's absence following the disappearance of her mother, Nancy Guthrie.