Police in Maine are appealing to the public for help in locating Ayla Reynolds.
WATERVILLE, Maine -- Investigators say they've found blood inside the Maine home where a toddler was reported missing six weeks ago.
State police spokesman Steve McCausland confirmed Saturday that blood was found in the basement early in the investigation into Ayla Reynolds' disappearance from her father's home in Waterville.
Her father, Justin DiPietro, says Ayla was not in her bed when he checked on her the morning of Dec. 17.
McCausland called the discovery of the blood "troubling."
"We have questioned the three adults that were there in the home that night," McCausland told The Associated Press. "We believe they have not given us the full story."
The blood is being analyzed to determine whose it is. McCausland said he didn't know when the results would be available.
Ayla was 20 months old when she disappeared. A vigil for her was being held Saturday in downtown Waterville.
WCVB-TV in Boston first reported the discovery of the blood.
Ayla was staying with her father at the time she was reported missing. Her mother, Trista Reynolds, lives in Portland.
McCausland declined to discuss how much blood was found in the basement or how old it might have been.
WCVB said DiPietro did not return several phone calls for comment.
DePietro has previously said publicly that he would never do anything to hurt his child. He has also said he took and passed a lie detector test -- an assertion Maine State Police would not confirm nor deny.
When asked Saturday if the family members were suspects in Ayla's disappearance, McCausland said, "No one has been ruled in, and no one has been ruled out," according to WCSH-TV.
The Associated Press contributed to this story.