Nancy Guthrie live updates: Suspect's clothing may have been purchased at Walmart; family cleared

A federal court-ordered search warrant was executed at a residence near Nancy Guthrie's home based on a lead investigators received, the Pima County Sheriff's Department confirmed Saturday.

No arrests were made but a traffic stop was also conducted by investigators. A person was questioned but no arrests resulted from that incident, according to PCSD.

"We remind the public that there's a reward of up to $100,000 for information leading to the location of Nancy Guthrie and/or the arrest and conviction of anyone involved in her disappearance. Call tips in to 1-800-CALL-FBIor 520-351-4900," PCSD said in a statement.

-ABC News' Aaron Katersky

The FBI and Pima County Sheriff's Department briefly detained a second man and searched a house a short drive from Nancy Guthrie's Catalina Foothills neighborhood late Friday into early Saturday, but there was no arrest and no sign of Guthrie, law enforcement sources told ABC News.

The sources described the activity as "tracking leads" associated with the Guthrie investigation.

The person detained, who was not identified, is the second individual to be questioned in connection with the case and then released.

Sheriff Chris Nanos told ABC News no one is fully cleared until there's an arrest. A man who identified himself as Carlos was detained and released earlier this week in Rio Rico, Arizona.

It was not immediately clear what led authorities to the home about two miles from where Nancy Guthrie lives but it's within the radius where investigators have asked residents to check their home security systems for footage from Jan. 1 - a month before her abduction - to Feb. 2, the day after she was taken. Investigators have said they are interested in suspicious persons or vehicles that may have been caught on camera.

-ABC News' Aaron Katersky

The Pima County Sheriff's Department, in a statement posted to social media, said that "law enforcement activity is underway at a residence near E Orange Grove Rd & N First Ave related to the Guthrie case."

Authorities did not release any further details but said that because this is a joint investigation, at the request of the FBI, no other information is currently available.

The Pima County Sheriff's Department blocked a residential street near Nancy Guthrie's home Friday to conduct an investigation related to the case.

The department confirmed law enforcement activity was underway at a residence near east Orange Grove Road and north First Avenue related to the Guthrie case.

"Because this is a joint investigation, at the request of the FBI - no additional information is currently available," the department said in a post on X.

A number of vehicles, marked and otherwise, converged on the neighborhood about two miles from Guthrie's home.

A department spokeswoman declined to elaborate on the nature of the activity other than to say it was related to the Guthrie case.

Investigators worked in the rain while keeping the public at a distance.