The mother of two missing Idaho siblings was arrested Thursday in Hawaii for not complying with a court order mandating her to turn in the children to police within Jan. 30.

Lori Vallow, 47, was facing multiple charges, including two counts of desertion and nonsupport of dependent children in lieu of a $5 million bail, Kaua'i Police Department said in a statement. Police said they were doubtful whether Vallow's children were at all present on the island of Kaua'i.

Her present husband, Chad Daybell, was not detained, NBC News reported.

Vallow was under investigation by the Rexburg Police Department and was arrested on a warrant issued by Madison County, Idaho. Vallow will be given the opportunity to waive or contest her extradition to Idaho in an impending court hearing in Kaua'i. She would face criminal charges in Idaho. The date for her Kaua'i arraignment was not decided.

The children, Tylee Ryan, 17, and Joshua Vallow, 7, have been missing from September. A nationwide search alert was issued by the FBI in December for the two children feared to have landed in “extreme danger.” Vallow and Daybell told police during a welfare check that Joshua was living with a family friend in Arizona. However, investigators later learned it to be a lie.

Annie Cushing, Tylee’s aunt, told KSL-TV that she was concerned about the safety of the children as Vallow is “unhinged.”

Kaua'i police spotted Vallow and Daybell last month on the island. They took the couple into custody after they refused to answer questions about the children’s whereabouts. They were eventually released, but Vallow was handed down the order to produce the children to the Idaho Department of Health and Welfare.

A surveillance video surfaced earlier this month where Vallow was seen visiting a storage facility in Idaho. She reportedly began renting the facility since Oct. 1, which was found to be accommodating many of her children’s belongings. Vallow was said to have visited it frequently in October, many a time accompanied by a man suspected to be her brother Alex Cox.

Man Charged In Missing Alaska Girl's Case
In this image: A handcuffed suspect is escorted by police as he arrives at the Paris courts, July 20, 2010. Reuters/Benoit Tessier