The toddler, Diego Sierra-Flores, of Hempstead, was last seen at his home on Friday, April 1 around 5:30 a.m., said the Nassau County Police.
The child is believed to be with his mother, Yansis Sierra-Mejia, age 25, address unknown, who may have taken the child to Virginia, police said.
Diego is described as being 2-feet tall, and 25 pounds, with brown hair, and brown eyes.
Sierra-Mejia is described as being 5-foot-4, 150 pounds with brown hair and brown eyes with an unknown clothing description.
Detectives request anyone with information to call the Nassau County Police Department Missing Persons Squad at 516-573-7347 or 911.
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