A prosecutor says the parents of a Virginia boy found dead in a septic tank left him at home with his infant sister on the morning he disappeared.

Pulaski County Commonwealth's Attorney Mike Fleenor says Ashley White and Paul Thomas told investigators they left 5-year-old Noah Thomas and his 6-month-old sister at home while White drove Thomas to work March 22.

The Roanoke Times (http://bit.ly/1EGimeZ) reports that Fleenor made the comments Wednesday during a bond hearing for Paul Thomas.

Thomas and White both face child abuse and neglect charges.

White previously told investigators the children made the trip, and that the boy disappeared after they came home.

Searchers found Noah Thomas' body on March 26 in a septic tank on the family's property.

The father was denied bond.

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Information from: The Roanoke Times, http://www.roanoke.com