Story highlights Body of a 4-year-old girl washed ashore near Boston on June 25

District attorney: "Who she is and where she's from remain a mystery to us"

(CNN) One week after her body washed ashore along a Boston Harbor peninsula, Massachusetts authorities are still appealing to the public for help identifying the little girl found wrapped in a zebra-striped blanket inside a trash bag.

"Who she is and where she's from remain a mystery to us," said Suffolk County District Attorney Dan Conley.

Ahead of the July Fourth weekend, Massachusetts State Police took to Facebook to make a plea to the nearly 25 million people who have already visited their page to read its post on the unidentified toddler. "Please look around July 4th gatherings -- block parties, cookouts, town fireworks displays -- and consider whether a child whom you would have expected to see there is now not present."

The child's body was discovered June 25 along the shores of Deer Island, a narrow peninsula just east of Boston's Logan Airport. "Since that time, state and local police have been trying to identify her through missing persons reports and appeals to the public," said Conley. "Those efforts have not yet been successful."

We have received 24.7M views of our #DeerIsland unidentified toddler post. Pls keep sharing. We must name this girl! https://t.co/ORyfD5XvJa — Dustin Fitch (@DustinGFitch) July 3, 2015

Authorities said the girl was about 3½ feet tall, had brown eyes and brown hair, and weighed about 30 pounds. They estimate she was about 4 years old. Her body showed no obvious signs of trauma, and investigators said her body had only been on the shore for a short time.

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