Authorities investigating Nancy Guthrie disappearance seal off road

Authorities investigating the disappearance of US TV host Savannah Guthrie's mother sealed off a road near her home and seized a vehicle from a parking lot late on Friday night.

A parade of cars from the FBI and the sheriff's office, including forensics vehicles, were seen passing through a roadblock set up about two miles from Nancy Guthrie's Arizona house. The two agencies also tagged and towed a Range Rover SUV from the parking lot of a chain-restaurant at around the same time.

Blood from the 84-year-old was previously found on the Tucson-area property's front porch. She was reported missing on 1 February .

Investigators have found several gloves, the nearest of which was discovered some two miles from Ms Guthrie's home, and submitted them for lab analysis, the sheriff's office said. The department said it had collected DNA from Ms Guthrie's property, which does not belong to the missing OAP, nor those in close contact with her.

Supposed ransom notes have been sent to news outlets, but two deadlines for paying have passed.Police have said that she has difficulty walking, has a pacemaker, and requires daily medication for a heart condition. Following the release of videos of a masked person on Ms Guthrie's porch, an Arizona sheriff's department received more than 4,000 calls within 24 hours.

Sorting through such tips is a tremendous amount of work, said Roberto Villasenor, a former Tucson police chief. "In a situation like this, you really cannot do what's been done without tips and public input," he said.

"They have processed the scene. But once that's done and exhausted, it's hard to move forward without additional information coming in." The Pima County sheriff and the FBI have announced phone numbers and a website to offer tips about the apparent kidnapping of Ms Guthrie.

Several hundred detectives and agents have been assigned to the case, the sheriff's department said. The FBI said it has collected more than 13,000 tips since 1 February, the day Ms Guthrie was reported missing.

The sheriff's department, meanwhile, said it has taken at least 18,000 calls. Read more:What we know about Nancy Guthrie's mysterious disappearanceMan questioned after doorbell images released The FBI said: "Every tip is reviewed for credibility, relevance and information that can be acted upon by law enforcement," the FBI said on Thursday on X, adding that the effort is a 24-hour operation.

The agency said it would not comment on the tips received. On Thursday, Savannah Guthrie, who co-hosts the Today show, posted on social media a home video montage of her mother with the caption: "Our lovely mom.

We will never give up on her. Thank you for your prayers and hope.".