Chicago police say they will drain the lagoon where a toddler's head, feet and hands were discovered in an effort to find more remains and other evidence.

Spokesman Anthony Guglielmi (gooh-YEHL'-meeh) says divers completed their search of the lagoon at Garfield Park and now it's necessary to drain it to continue the investigation.

Guglielmi says detectives also have combed through missing persons reports filed in and around Chicago and have found no promising leads.

The medical examiner says the head appears to be an African-American child between 2 and 3 years old. Guglielmi says investigators believe the decomposed remains are from the same child, but tests must be completed to rule out multiple victims.