"No piece of information is too small", the sheriff's office said, adding that anyone who has had any contact with the family since her disappearance is asked to call the sheriff's office or the Federal Bureau of Investigation.
Law enforcement have urged anyone to come forward with any information on Mariah, who is about 2 feet and 9 inches tall and weighs 30 pounds. She has blond hair and blue eyes.
North Carolina toddler has been missing since last weekend.
A search in a wooded area behind the girl's home as well as the surrounding woods by four volunteer fire departments, the Onslow County Sheriff's Department and K9 unites came up empty, WCTI reported. When asked whether the family was cooperating, he said, "We're talking to them, they're talking to us".
Monday afternoon - Kristy Woods gives a TV interview: "I'll do anything I can, whatever you want", she said. The child is not Mariah Woods and the woman does not have any connection to the ongoing investigation to find Mariah, they said. "This is my everything, besides my boys, the love that I have for this girl". Even with the aid of a helicopter and drones, authorities didn't find anything to lead them to Mariah.
AMBER ALERT for Mariah Woods Missing 3-year-old Onslow County North Carolina girl disappeared in the middle of the night. WITN NBC NEWSCHANNEL
"She wouldn't have her support, her braces and things of that nature", said Cloyd. WATCH: Officials give update on Mariah's caseABC News reports that her mother reached out to the public in an emotion-filled plea Monday. He said he custody of the children for around a month a year ago after an incident that alerted Child Protective Services, but when Hunter got the kids back, she reportedly wasn't cooperative in allowing Woods visitation.
There was apparently also no sign of forced entry, though the door to the family's trailer was left unlocked overnight. Kristy Woods went to check on Mariah the following morning, but found her missing.
Sheriff Miller said that this was a "focused" incident and there is no danger to the public. Deputies are asking anyone with information on the girl's whereabouts or who has had contact with the girl's family since Sunday to call them at (910) 989-4070.
He said investigators are "working around the clock" and hope to bring the girl home safely.
Suspected serial killer Howell Emanuel Donaldson III, 24, made his initial court appearance Thursday on charges of first-degree murder.
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