MOUNTAIN HOME — Authorities in Southwest Idaho announced on Monday that a burial site found north of Mountain Home on April 15 actually contained two sets of child remains.

According to Elmore County Sheriff Mike Hollinshead, the first set of skeletal remains was from a child between 3 and 5 years old, and the second set was from a child 4 to 9 years old.

Police were not able to determine the gender of either child.

Officials with the Elmore County Sheriff’s Office, the Idaho Department of Fish and Game and the Bureau of Land Management recovered the remains after consulting with archaeologists and a tribal representative.

Archaeologists said the burial site did not exhibit Native American characteristics based on the location of the terrain.

Officials at Boise State University are aiding in the forensics part of the investigation. In addition, investigators will use carbon dating to determine the age and when the bodies were buried.

Last week, Hollinshead said that it appears the bodies had been buried approximately 15 to 20 years ago. It is an ongoing investigation, and the Elmore County Sheriff's Office said it has not ruled out criminal activity or foul play.

Investigators are also working with surrounding law enforcement agencies to determine possible links to missing child cases outside of Elmore County.