Savannah Guthrie's missing mom updates, investigation remains 'active'

The search for Savannah Guthrie's missing mother is entering its fourth week, as authorities in Arizona maintain that the case has not gone cold.

Law enforcement asks anyone with information to contact 1-800-CALL-FBI or tips.fbi.gov, the Pima County Sheriff's Department (520-351-4900) or 88-CRIME.

The search for Savannah Guthrie's missing mother is entering its fourth week, as authorities in Arizona maintain that the case has not gone cold.

The Pima County Sheriff's Department and the FBI are continuing to search for the "Today" show anchor's 84-year-old mother Nancy Guthrie, who was reported missing from her home in Arizona on Sunday, Feb. 1, and has not been seen since Saturday, Jan. 31. As the investigation stretches into another week without a major breakthrough or arrest, the sheriff's department said on Feb. 21 that there are still "several hundred law enforcement personnel" dedicated to finding Guthrie.

Earlier this month, the FBI released images showing a masked man appearing to tamper with the camera at Guthrie's front door the morning she disappeared, but the person in the images has not been identified. Law enforcement has ruled out all members of the Guthrie family as suspects.

The FBI is offering a reward of $100,000 for information that will lead to Guthrie's recovery or the arrest and conviction of anyone involved in her disappearance.