GRAND TETON NATIONAL PARK, Wyo.

— NOTE: FOX 13 News has reached out to authorities at Grand Teton National Park, the FBI, North Port, Florida Police, and the family of Gabby Petito in an attempt to corroborate the information below.

A TikTok user claimed that she picked up Brian Laundrie, the boyfriend of missing woman Gabby Petito, while he was hiking alone in Grand Teton National Park in Wyoming in late August.

In a video on TikTok published Friday, a user by the name of Miranda Baker said on August 29 she and her boyfriend picked up Brian Laundrie, who she said was hiking alone in Grand Teton National Park at 5:30 p.m.

"He said he had been camping for multiple days without his fiance," Baker recalled.

Baker said they let him out near Jackson Dam in Grand Teton National Park.

In a second video, Baker said Laundrie allegedly told her that he and Gabby were camping along Snake River, on an unregulated camp ground, "basically out in the middle of nowhere.".

The main search for Gabby Petito on Friday remained focused on the Grand Teton area, where the FBI had taken charge

Clayton Platt of the Teton County Sheriff's Office told Fox News Friday that investigators were conducting physical searches in the area of Grand Teton National Park, but would not disclose where exactly they were looking for signs of Petito

If you have any knowledge on the whereabouts, or had any contact with Gabby Petito or Brian Laundrie, you're asked to call 1-800-CALL-FBI