By CBSMiami.com Team

FORT LAUDERDALE (CBSMiami/AP) – Law enforcement officials descended on the Florida family home of a man police say is a person of interest in the death of his fiancée.

Brian Laundrie has not been seen for nearly a week and the F-B-I wants to question him about Gabby Petito.

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On Sunday, investigators found a body believed to be Petito at a campsite in Wyoming’s Grand Teton National Park that the couple had visited.

The cause of death has not yet been determined, said FBI Supervisory Special Agent Charles Jones.

“Full forensic identification has not been completed to confirm 100% that we found Gabby, but her family has been notified,” Jones said. “This is an incredibly difficult time for (Petito’s) family and friends.”

Jones and other law enforcement officials declined to take questions during a Sunday evening news conference in Grand Teton announcing the body’s discovery.

Gabby Petito (Source: Nomadic Statlk)

On Monday, the North Port Police Department said in a news release that the agency “currently has no plans to conduct a major search” for Laundrie, 23, in Carlton Reserve in Sarasota County.

Investigators focused intently over the weekend on the wildlife area after Laundrie’s parents told police he may have gone there last week. The reserve has more than 100 miles of trails and numerous campgrounds.

The police statement said they “exhausted all avenues in searching of the grounds there.”

It was not immediately clear if investigators are searching elsewhere for Laundrie.

Family Mourns
Petito’s father, Joseph, posted on social media an image of a broken heart above a picture of his daughter with a message that said, “she touched the world.”

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An attorney who has been acting as a spokesman for Petito’s family asked in a statement that the family be given room to grieve.

Attorney Richard Benson Stafford indicated the family would make a public statement at a later date, and he thanked officials with the FBI, Grand Teton Search and Rescue, and other agencies that participated in the search for Petito.

“The family and I will be forever grateful,” Stafford said in a statement.

An undeveloped camping area on the east side of Grand Teton bordering national forest land will remain closed until further notice while the investigation continues, Jones said.

Jones said investigators were still seeking information from anyone who may have seen Petito or Laundrie around camping sites in the area of Spread Creek, where law enforcement search efforts focused over the weekend.

Petito’s Disappearance
The pair left in July on a cross-country trek in a converted van to visit national parks in the U.S. West. Laundrie was alone when he drove the van back to his parents’ home in North Port, Florida, on Sept. 1, police said.

Petito’s family filed a missing person report on Sept. 11 with police in Suffolk County, New York.

Petito’s family had been pleading for the Laundrie family to tell them where their son last saw her. Petito and Laundrie were childhood sweethearts who met while growing up on Long Island, New York. His parents later moved to North Port, about 35 miles south of Sarasota.

The couple’s trek in the Ford Transit began in July from Long Island. They intended to reach Oregon by the end of October, according to their social media accounts. But Petito vanished after her last known contact with family in late August from Grand Teton National Park, authorities said.

Police video released by the Moab Police Department in Utah showed that an officer pulled the van over on Aug. 12 after it was seen speeding and hitting a curb near the entrance to Arches National Park. The bodycam video showed an emotional Petito, who sat inside a police cruiser while officers also questioned Laundrie.

Moab police ultimately decided not to file any charges and instead separated the couple for the night, with Laundrie checking into a motel and Petito remaining with the converted sleeper van.

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(© Copyright 2021 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)

CBSMiami.com Team