UPDATE: 5:20 p.m. - Maine State Police now say they have identified the boy whose body was found near Dennett Road in South Berwick. They have not released the boy's name, pending confirmation that the chlld's family has been notified.
A spokesman says detectives are "extremely thankful for the hundreds of tips, phone calls and e-mails that we received in the past four days from around Maine and across the country."
(NECN: Concord, Mass.) - David Procopio, Spokesman for the Massachusetts State Police, says the New Hampshire Attorney General's Office will take the lead role in an investigation of the death of a young boy whose body was found in South Berwick, Maine on Saturday.
Massachusetts State Police have questioned a woman, identified by family members as Julianne McCrery, who was taken into custody on Wednesday at a highway rest stop in Chelmsford, Massachusetts. She was being questioned in Concord, Mass. before being taken to an area hospital for a medical evaluation.
A pickup truck towed from the rest stop is registered to a Julianne McCrery of Irving, Texas.
McCrery has not been charged with any crime at this time.
The body of the young boy was discovered alongside a dirt road. South Berwick is a town on the New Hampshire border. Authorities have not confirmed the identity of the deceased boy, as of yet.
Maine State Police earlier in the day began referring all questions to the Maine Attorney General's Office, which has not commented on the case.
Family members tell NECN that McCrery is being questioned in the death of six-year-old Camden Pierce Hughes.
Pictures of the boy on McCrery's Facebook page strongly resemble a computer-generated image of the unidentified boy in the South Berwick case.
McCrery has been arrested on drug and prostitution charges in the past. She has two sons, Camden, and an older son, Ian, who is a culinary specialist in the U.S. Navy.
McCrery wrote a sleeping aid book entitled "Good Night Sleep Tight: How to Fall Asleep and Go Back to Sleep when You Wake Up."
All questions are now being directed to the New Hampshire Attorney General's Office.
Police have not confirmed the identity of the woman being questioned or the deceased boy.