GRAND TETON, Wyo. (ABC4) – Multiple law enforcement agencies have now joined the effort in the continued search for missing 22-year-old Gabby Petito in Grand Teton National Park.

Petito was last believed to have been in Grand Teton National Park before her disappearance in late August. She was traveling in a van with her fiancé, Brian Laundrie, throughout the western U.S. and was last known to be traveling through Utah and Wyoming.

Currently, both Petito and Laundrie are being treated as missing person cases, with Laundrie disappearing earlier this week on Tuesday.

A map showing the search area authorities are focusing on in Grand Teton National Park, Wyoming. (Courtesy of FBI Denver)

“Gabby was on an extended road trip that included tourist areas,” FBI Denver officials say. “Many people across the U.S. and other countries visiting those locations may have seen her or the van and could have taken photos or videos which contain images of Gabby.”

The FBI is asking for help from anyone who may have spent time in the Spread Creek Dispersed Camping Area between August 27-30. Ptito was last seen driving a 2012 Ford Transit with a Florida license plate QFTG03.

The new investigation is being conducted in conjunction with the National Park Service, Teton County Sheriff’s Office, Jackson Police Department, the FBI Denver Field Office, and Wyoming Resident Agencies.

Officials are asking citizens to avoid the search areas during the ground surveys to maintain the integrity of the investigation.

Petito is described as white, approximately 5’5″ and 110 pounds. She has blonde hair, blue eyes, and several tattoos, including one on her finger and one on her forearm that reads “Let it be.”

Police are asking anyone with information about Petito’s disappearance to call 1-800-CALL-FBI or to upload tips online at Relevant photos and video can be uploaded to To view the official missing person listing from the FBI, click here.