Authorities offered $30,000 on Monday for information that leads to the safe return of Ayla Reynolds, a 20-month-old Waterville, Maine, girl who went missing ten days ago.

Waterville Police Chief Joseph Massey said that police believe someone took Reynolds from her house, according to CNN, and an extensive search has been underway since she disappeared from her home.

At this point in the investigation let me say that we are confident that Ayla did not walk out of the house by herself,Massey told Maine's WABI TV on Monday. We believe that someone was involved in taking her out of the house. And that's where the focus of this investigation has turned.

Massey said he believes the $30,000 reward is the largest to be offered in a missing person case in Maine's history.

Ayla has blonde hair, is 2'9 and weighs just 30 pounds, CNN said, and she was wearing green and white polka-dot pajamas with Daddy's Princess displayed on the front and had an arm in a soft cast when she was last seen.

Police have no one in custody in connection with the case, and the family of Ayla Reynolds is cooperating, CNN said. WABI reported that authorities continue to treat the toddlers' disappearance as a missing persons case, not a criminal investigation.

Let me start out by saying unfortunately we were not able to get Ayla home for Christmas, Massey told WABI. I can tell you that that weighs heavily on all of us.

Anyone with any information relevant to the disappearance of Ayla Reynolds should call the Waterville Police Department at (207)-680-4700.