A vehicle from the Pima County Sheriff's Office in Tucson, Ariz., blocks a road in the Guthrie investigation.

TUCSON, Ariz. (AP) — Law enforcement investigating the disappearance of “Today” show host Savannah Guthrie ‘s mother sealed off a road near Nancy Guthrie’s home in Arizona late Friday night.

A parade of sheriff’s and FBI vehicles, including forensics vehicles, passed through the roadblock that was set up about 2 miles (3.2 kilometers) from the house.

The two agencies also tagged and towed a Range Rover SUV from a Culver’s restaurant parking lot. The restaurant is just over 2 miles from Nancy Guthrie’s home. This activity took place at the same time the sheriff’s office closed a road just north of the Guthrie home.

The Pima County Sheriff’s Department confirmed Saturday that a federal court-ordered search warrant was executed at the home Friday in connection with the Guthrie case. The warrant was based on a lead the agency had received. No arrests were made.

A traffic stop was also conducted, and while someone was questioned, no arrests were made, the sheriff’s office said.

No additional information was released Saturday.

Guthrie, 84, was reported missing on Feb. 1. Authorities say her blood was found on the front porch of her Tucson-area home. Purported ransom notes were sent to news outlets, but two deadlines for paying have passed.