WILKESBORO, N.C. (AP) — Two people remained in custody Monday after sheriff’s deputies in North Carolina located a vehicle last week that Tennessee authorities were searching for in connection with the disappearance of a 15-month-old girl.

William McCloud and Angela Boswell will be taken to northeastern Tennessee’s Sullivan County after agreeing to be extradited from North Carolina. They were arrested Friday on fugitive warrants unrelated to the toddler’s disappearance, said Lt. Logan Kerr with North Carolina’s Wilkes County Sheriff’s Office.

The Tennessee Bureau of Investigation said in a news release that McCloud and Boswell are “believed to have information” regarding the whereabouts of Evelyn Mae Boswell, who was reported missing Tuesday but was last seen the day after Christmas. The agency said agents and detectives questioned the couple traveling in a gray BMW as part of the ongoing investigation.

Sullivan County Sheriff’s Office Capt. Andy Seabolt told The Associated Press authorities cannot say when McCloud and Boswell will be back in Tennessee because of security reasons.

The fugitive warrant for McCloud shows he is wanted for theft over $2,500. Boswell’s warrant shows she is wanted for a probation violation.

Authorities have received more than 400 tips since issuing an Amber Alert on Wednesday.

The Tennessee Bureau of Investigation said it is trying to determine why the child’s disappearance was not reported to authorities sooner. The agency also said Dec. 26 is listed as the day Evelyn was last seen, but her mother and others have given conflicting dates.