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Remains thought to be those of a 15-month-old Tennessee girl who has not been seen since December were discovered Friday evening, officials said.

Evelyn Mae Boswell's mother and grandmother were arrested last month, and officials say the investigation has been complicated because the toddler's relatives have given conflicting statements.

The remains were found after investigators "searched a property belonging to a family member of Evelyn's mother, Megan Boswell" in Blountville, the Tennessee Bureau of Investigation said.

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An autopsy is pending, and the investigation remains ongoing, the bureau said.

No new charges related to the apparent discovery of the child’s body were announced.

Megan Boswell, 18, was arrested by the Sullivan County Sheriff’s Office last month and charged with making false reports after investigators determined she provided false information, officials have said.

We have a heartbreaking update in the search for #EvelynBoswell.



This evening, authorities found remains believed to be those of the missing 15-month-old. An autopsy is pending and the investigation remains ongoing.



Thank you for your support during this difficult process. pic.twitter.com/KxwpePiydT — Tennessee Bureau of Investigation (@TBInvestigation) March 7, 2020

The toddler was not reported missing until last month but hasn't been seen since late last year.

Sullivan County Sheriff Jeff Cassidy said last week that statements Boswell made delayed the investigation.

"Every time we talk to her, her story changes," Cassidy said then. "I'm serious when I say that. Every single time."

Megan Boswell SCSO

Court documents say Boswell initially told police that her baby was with her father, whom she was to meet at a store in Colonial Heights, NBC affiliate WCYB of Bristol, Virginia, has reported. The father, who is stationed with the military in Louisiana, did not have the child.

Megan Boswell's mother, Angela Boswell, and her boyfriend were arrested in Wilkes County, North Carolina, in February after investigators searching for the child put out an alert saying the people in the car they were driving may have information about the case.

Neither has been charged in connection with the disappearance, but they have been charged because the owner of the BMW reported it stolen, according to WCYB. Both have recently been released on bond, according to the station.