Details of the operation to detain a person of interest in the disappearance of Nancy Guthrie were scant, but the person was apparently taken into custody quickly on Tuesday night. It was not clear what brought law enforcement to the location or the person of interest.

A person of interest has been detained in connection with the disappearance of Nancy Guthrie, the mother of “Today” show co-host Savannah Guthrie, two law enforcement sources told CBS News. The were detained in a city south of Tucson, the sources said.

It was not immediately clear if the person detained was the same person seen in surveillance video and images released by the FBI earlier Tuesday.

There was also no immediate word on the whereabouts or condition of 84-year-old Nancy Guthrie, who has been missing for 10 days and was without medication her family said she needed to take daily.

Earlier Tuesday, FBI Director Kash Patel shared images and videos of a subject in the disappearance of Nancy Guthrie. The images showed a person wearing a ski mask and gloves. The person was carrying a backpack and appeared to also possibly have a gun holstered on their belt.

After those images were released, search and rescue teams, along with the FBI, began canvassing the nearby neighborhood where Nancy Guthrie’s other daughter, Annie Guthrie, lives. 

It was not immediately clear if the subject seen in the videos was the person who was detained Tuesday night.

Members of the regional SWAT were activated to work with the Pima County Sheriff’s Department on Tuesday night, Oro Valley Police told CBS News.