TUCSON, Ariz. — A man who was briefly detained and questioned in February in the disappearance of Nancy Guthrie, the mother of NBC "Today" co-host Savannah Guthrie, has been arrested on unrelated weapons and drug charges, according to court records.

The 37-year-old man was taken into custody Sept. 30 in Arizona. Authorities have not publicly linked the new charges to the investigation into Guthrie's disappearance, and the arrest does not indicate that investigators have identified a suspect in the case.

The Associated Press is not naming the man because he has not been charged in connection with Guthrie's disappearance.

According to court records, the arrest followed an encounter involving probation officers and Pima County sheriff's deputies. Officers found two firearms inside a gun case, along with a white plastic bag containing a powdery substance that later tested positive for crack cocaine, the records said.

The man was booked on one count of misconduct involving weapons and one count of possession of a narcotic drug. Sheriff's department inmate records listed his bond at $2,500.

It was not immediately clear whether he had an attorney who could comment on the charges.

The man first drew public attention on Feb. 13, when Pima County sheriff's deputies and FBI agents converged on the parking lot of a Culver's restaurant. Authorities detained him and towed a gray Range Rover from the........

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