Police out in Missoula, Montana say they have found a box containing teeth and bones which may be linked to three missing boys from Morenci, Michigan.
Andrew was 9 years old, Alexander was 7 and Tanner was 5 when they went missing.
Seven years ago, three local boys - Andrew, Alex and Tanner Skelton - went missing, a disappearance that remains unexplained.
The discovery of the remains drew the attention of Michigan State Police.
"We are aware of the situation and are taking it seriously", said the spokesman, First Lt. Mike Shaw.
Michigan State Police are asking for more information from police in Montana about the remains, which were discovered in a shed in Missoula. It's also unclear whether the remains are from siblings.
When pressed by authorities about what he had done with his sons, Skelton originally said they were with a friend, Crime Watch Daily reported. "Until this testing is completed and additional investigation by law enforcement in Montana occurs, it can not be determined if these remains belong to the missing Skelton brothers". Missoula police say it's an open investigation.
On Thursday night, Tanya Zuvers, the missing MI boys' mother, posted about the news out of Montana on Facebook. John Skelton said she was abusing her own sons, but she said that's not true.
OnePlus 5T Star Wars Edition wallpapers are now available for download
The metal back of the device is painted in Crait white with a precise Star Wars logo in Red printed on the back. The front camera comes with a 16-megapixel sensor and the rear camera with a 20-megapixel sensor.
More: FBI: Body of missing 3-year-old believed to be found in N.C. "We are processing it and hope that we will have answers soon".
"I just remember it was in the paper every day", she said.
Zuvers could not immediately be reached for comment.
The boys' father, John Skelton, was sentenced in 2011 to 10 to 15 years in prison for unlawful imprisonment.
Skelton previously insisted he didn't know where the boys were and that they had been with members of an underground sanctuary group.
When the cleaners picked through the shed, they found a box in the building. Forensic testing revealed they likely belonged to children between the ages of 2 and 4, 5 and 8, and 6 and 10.
"Nothing we've been able to connect them too yet, however we are working with the National Center for Missing and Endangered Children and other missing person databases to see if that's a possibility", Welsh said.
Shaun Hegarty has been working this story in MI, since the Skelton boys disappeared seven years ago. Michigan State Police confirmed they are looking into the possible new development.