Searches continue for Gabby Petito and her fiancé, who disappeared after returning home from a road trip without her

Bodycam footage from the Moab Police Department from August shows them talking with Brian Laundrie.

(Meredith/CNN) -- A body was found Sunday in a national forest in Teton County, Wyoming, according to County Coroner Dr. Brent Blue.

Additional details were unavailable, Blue told CNN over the phone.

Authorities have been searching Bridger-Teton National Forest in Wyoming for any evidence of 22-year-old Gabby Petito, whose family reported her missing September 11.

News of the discovery of a body comes as authorities in Florida also search for Petito's fiancé Brian Laundrie, whose family told police Friday they had not seen him since last Tuesday.

-- Original Story Below --

As local and federal agencies search for Gabby Petito in a national park in Wyoming, law enforcement are also working to find her fiancé Brian Laundrie, who his family says has not been seen since Tuesday.

The latest efforts to locate Laundrie have shifted to a Florida nature reserve, where dozens of officers and FBI agents are combing an area that stretches out to roughly 25,000 acres, according to the North Port Police Department.

The search resumed Sunday morning, North Port police said in a tweet, writing that investigators are "looking for anything of note after his parents say this is where he went."

Laundrie's family told police he left home with his backpack Tuesday and told them he was going to the reserve, North Port police spokesperson Josh Taylor said Saturday.

Laundrie, 23, is not wanted for a crime, according to law enforcement officials, who began investigating Petito's disappearance on September 11 when her family reported her missing. Prior to her disappearance, Petito, 22, had been traveling with Laundrie on a cross-country road trip through several western states, leaving online reviews of campsites they visited.

Searches continue for Gabby Petito and her fiancé, who disappeared after returning home from a road trip without her

In this photo provided by the North Port Police Department, law enforcement officials conduct a search of the Carlton Reserve in the Sarasota, Florida, area for Brian Laundrie on September 18.

Laundrie returned to North Port, Florida, without Petito on September 1, according to police. Officials later found the van the couple had been traveling in at the home Petito shared with Laundrie and his parents in North Port, a city in Sarasota County some 80 miles south of Tampa.

Police visited the home after Petito was reported missing, but Laundrie's family refused to talk, Taylor said last week, and instead gave authorities the information for their attorney.

The home was searched Friday evening, when Laundrie's family told police they had not seen him for days. Laundrie family attorney Steven Bertolino said Friday that Laundrie's whereabouts "are currently unknown."

Richard Stafford, the attorney for the Petito family, said in a brief statement to CNN, "All of Gabby's family want the world to know that Brian is not missing, he is hiding. Gabby is missing."

The search for Petito Saturday included ground surveys being conducted alongside the National Park Service and local authorities at the Spread Creek Dispersed Camping Area in Bridger-Teton National Forest on the eastern edge of Grand Teton National Park, the FBI's Denver field office said in a tweet.

The office said it is seeking assistance from anyone who was in the camping area between August 27 and 30 and may have had contact with Petito or Laundrie or seen their vehicle -- a 2012 Ford Transit van with a Florida plate and stickers on the back, according to a FBI's Missing Person poster for Petito.

Laundrie search continues in 'vast' nature reserve

Before efforts were suspended Saturday evening due to darkness, 50 law enforcement officers from five local agencies and the FBI conducted their search for Laundrie in the "vast" Carlton Reserve in Sarasota County, Florida, police said.

"Nothing found. Efforts will begin again Sunday morning," North Port police said on Twitter.

The search effort included the use of drones and bloodhounds who used articles of Laundrie's clothing taken from his home to get his scent, Taylor said in a news conference at the scene of the search Saturday. Police initially focused their search on a nearby park about 200 acres large before expanding out to the rest of the reserve.

Police believe the vehicle Laundrie was driving may have been at the reserve too, but has since been returned to the Laundrie's home, Taylor said.

Laundrie has an "enormous amount of pressure" on him to provide answers to what's going on, Taylor said.

Asked why Laundrie's family didn't tell police of his whereabouts until Friday, Taylor said, "that's a great question."

"You know we've obviously been trying to reach the family to get answers in this case since (last) Saturday," Taylor said. "The first time that we've had any in-depth conversation with them was (Friday) when their attorney called and said the family was concerned about Brian's whereabouts."

Both Petito's and Laundrie's disappearance continue to be characterized by law enforcement as "multiple missing person investigations," according to a statement Friday from North Port police.

The-CNN-Wire™ & © 2021 Cable News Network, Inc., a WarnerMedia Company. All rights reserved.

CNN's Andy Rose, Jenn Selva, Alta Spells, Shawn Nottingham, Christina Maxouris, Aya Elamroussi, Rob Frehse, MiSeon Lee and Deanna Hackney contributed to this report.

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