Two skeletons discovered at Lake Eufaula are "ancient" human remains, according to investigators.
The Oklahoma State Medical Examiners office says the remains could be anywhere from 200 to 2,000 years old, or even beyond.
The ME's office was able to make that determination based on marks on the teeth that are consistent with the type of food ancient humans ate.
The two skeletons, which included skulls and back bones, were discovered as a result of the lingering drought that's caused the lake level to recede.
Pittsburg County Sheriff Joel Kerns said investigators found a cable with a cinder block near the remains, but that appears to have been just a coincidence.
Kerns says several visitors to the lake called to report the remains.
In cases like this, it's customary for investigators to compare the remains to any missing persons reports in the area.
The highest profile missing persons case in that area involves the Jamison family, who disappeared in 2009.
Bobby and Sherilynn Jamison and their daughter Madyson were last seen on October 8, 2009. Their pickup truck was found October 17, 2009, with their dog locked inside.
Based on what the ME's office is saying about this discovery, it appears the Jamison case will continue to be a mystery.