Savannah Guthrie says family in 'agony' in first interview since mother Nancy's disappearance

"Today" anchor Savannah Guthrie said her family is in "agony" in her first interview since her mother Nancy was taken from her Arizona home and reported missing on Feb. 1. 

"Someone needs to do the right thing. We are in agony, we are in agony," a tearful Guthrie told co-host Hoda Kotb in a preview of the interview that will air over the course of the week. 

Nancy Guthrie's case has dominated headlines for weeks, but authorities have been unable to find her in the suspected kidnapping.

Her daughter called the situation "unbearable."

"And to think of what she went through. I wake up every night in the middle of the night, every night," she told Kotb. "And in the darkness, I imagine her terror. And it is unthinkable, but those thoughts demand to be thought. And I will not hide my face. But she needs to come home now."

Guthrie has been away from the show since her mother went missing but returned to the Rockefeller Center studio to visit colleagues on March 6. Kotb has been anchoring alongside Craig Melvin while Guthrie is away from the show. 

"Today" will air the reminder of the interview in two parts on Thursday and Friday. 

This is a developing story, more to come…