MOBILE, Ala. (AP) -- Police say a father whose missing children are believed to be dead told investigators he buried one of his young children in Mississippi in March, then buried the other in Alabama in June.

The father, 27-year-old John DeBlase, was being held Monday on $206,000 bond. He is charged with child abuse and corpse abuse.

The children's stepmother, Heather Leavell-Keaton, was jailed in Kentucky on child abuse charges. She will soon be extradited back to Alabama.

Mobile police say Deblase has admitted burying his two children -- 5-year-old Natalie and 3-year-old Chase -- but claims Leavell-Keaton killed them. She is pointing the finger at him.

Mobile Police Officer Chris Levy says the children were last seen this summer.