The president said he planned to call the 'Today' show anchor soon

Authorities in the Tucson, Arizona, area are searching for the mother of "Today" show host Savannah Guthrie, 84-year-old Nancy Guthrie.

More than 48 hours after Nancy Guthrie was reported missing from her Arizona home, officials still are looking for her and asking the public for leads, officials said Tuesday in a news conference about the missing 84-year-old mother of “Today” anchor Savannah Guthrie.

Authorities are investigating the disappearance of Nancy Guthrie, 84, who was last seen at her Arizona home on Sat. Jan. 31

Surrounded by vast desert, the long and windy road that leads to Nancy Guthrie’s home in the Catalina Foothills is dotted with prickly cacti and attractive houses.

The disappearance of Nancy Guthrie, the 84-year-old mother of “Today” show co-anchor Savannah Guthrie, is sparking a broader conservation of elder care and loved ones' digital footprints.

In the Tucson-area Catalina Foothills where Nancy Guthrie lives, neighbors sought information and comfort among themselves.

If the case is random, it's "much more difficult to solve," Garrett warned.

The 'Today' show host's 84-year-old mother, Nancy Guthrie, was last seen at her Arizona home on Jan. 31