Medical examiner called to Florida reserve where authorities have been searching for Brian Laundrie

• A Florida medical examiner's office was called to the reserve where authorities have been searching for Brian Laundrie.
• The District 12 Medical Examiners Office was called to the Carlton Reserve in Sarasota County.

A Florida medical examiner's office was called Wednesday to a wildlife preserve in the Sunshine State where authorities have been searching for Brian Laundrie for more than a month.

The District 12 Medical Examiners Office was called to the Carlton Reserve in Sarasota County, a worker told Insider, declining to say why.

Additionally, a human remains detection team from the Pasco County Sheriff's Office was requested by the North Port Police Department to go to the nature preserve Wednesday to assist in the search for Laundrie, spokesperson Amanda Hunt said.

The team is made up of a human remains detection canine and a handler, Hunt said, adding that this is the third or fourth time the team has been called to assist in the search.

Earlier Wednesday, possessions belonging to Brian Laundrie were found near the Carlton Reserve after his parents joined the FBI-led search, said the family's attorney, Steven Bertolino.

The unspecified items were discovered at the Myakkahatchee Creek Environmental Park, which connects to the 25,000-acre Carlton Reserve in where the FBI and other law enforcement agencies have been looking Laundrie since mid-September, according to Bertolino.

Laundrie's parents, Chris and Roberta, joined law enforcement at the park Wednesday morning to "search for Brian," Bertolino said.

"The FBI and [North Port Police Department] were informed last night of Brian's parents' intentions and they met Chris and Roberta there this morning," the lawyer said.

"After a brief search off a trail that Brian frequented some articles belonging to Brian were found," Bertolino added. "As of now, law enforcement is conducting a more thorough investigation of that area."

Laundrie remains the sole person of interest in the disappearance and killing of his fiancée Gabby Petito.

Laundrie's parents reported their son missing to Florida police on September 17 - more than two weeks after the 23-year-old returned home from a cross-country road trip he took with Petito without her and with the van they had been traveling in, authorities have said.

Petito's body was discovered at a remote campground in Wyoming on September 19. A coroner later ruled that the 22-year-old woman died by manual strangulation sometime in late August.