Memphis police announced the discovery of remains belonging to three young children, estimated between ages 3 and 7, found in a wooded area after a dog walker discovered a skull in early March. The bones are believed to have been in the area for several years; investigators are working to identify the children and determine how they died, with 170 personnel and federal agencies including the FBI assisting in the search. A review of recent local missing persons reports turned up no matches, and authorities are considering the possibility the children may be from outside Memphis. Police urged the public to contact them with any information about missing children.