Oxygen has released photos of bone fragments that may belong to missing Natalee Hollway, who disappeared on a high school graduation trip to Aruba in 2005.

The Oxygen docuseries The Disappearance of Natalee Holloway has chronicled the search for her possible remains and the difficult process of identifying them. As CrimeOnline previously reported, a tipster contacted Natalee’s father Dave Holloway after he became acquainted with a friend of Joran van der Sloot, the prime suspect in Natalee’s disappearance. That tipster revealed that van der Sloot’s friend, John Ludwick, confessed to know where her remains were buried.

The tipster worked with Natalee’s father and private investigator T.J. Ward to uncover those bone fragments. He also put them in touch with Ludwick, who confessed on camera what he claims to know about Natalee’s disappearance and presumed death, and said he was paid $1,500 to dig up and attempt to dispose of her remains.

On Thursday, Oxygen.com shared images of bone fragments found at a burial site in Aruba while Natalee’s family anxiously awaits DNA testing results to determine if those fragments came from her.

Dr. Jason Kolowski, the forensic scientist leading the effort to identify the remains, told Oxygen.com that the DNA testing process has been prolonged because the bone fragments do not contain any nuclear DNA, which is passed on by both parents. These fragments only have mitochondrial DNA present, which comes exclusively from a person’s mother. But the scientists have obtained a reference sample from Natalee’s mother Beth Holloway.

“Beth’s would be exactly the same as Natalee’s or any of Beth’s other children,” Dr. Kolowski told Oxygen.

The finale of The Disappearance of Natalee Holloway will air on Oxygen on Saturday, September 23 at 7 p.m. ET and 9 p.m PT.