Updated

A 2-year-old who had been reported missing was found miles away from her Massachusetts home sitting nude by the side of a road with her head shaved.

Authorities said the toddler had been reported missing from her Hamilton home Friday morning. They say an Amber Alert was about to be issued when the girl was located.

Witnesses who found the toddler say she was found alone hours later in Rowley, on the border of Ipswich, about seven miles from Hamilton. She was taken to Boston Children's Hospital.

A Massachusetts State Police spokesman said the area is being treated as a crime scene out of caution.

Hamilton Police Chief Russell Stevens said at a news conference the case is like a "jigsaw puzzle" and that "pieces are missing."

Authorities are investigating.