The FBI has provided new confirmed information in the wake of a major development in the search for fugitive Brian Laundrie, the sole person of interest in the murder of Gabby Petito.

FBI authorities confirmed that along with the unidentified apparent human remains, a backpack and notebook belonging to Brian Laundrie

Earlier today, investigators found what appeared to be human remains along with personal items, such as a backpack and notebook belonging to BrianLaundrie. These items were found in an area that up until recently had been underwater.

The FBI's evidence response team is on-site and will be for "several days."

The park will remain closed as multiple agencies work the active ongoing investigation.

On Wednesday, partial human remains were found in the Carlton Reserve—an area that authorities have been searching for over the last month.

Those remains were reportedly found not far from a backpack that was "consistent" with items that Brian Laundrie may have been using.

The area where those belongings were found was previously underwater.

You can read the original story on those findings that led up to today's announcement by the FBI here.