POTEAU, Okla. — A judge has declared a mistrial in the case of a 62-year-old man who was charged with child neglect and sexual abuse after his nine children were found living in squalid, bug-infested conditions in eastern Oklahoma.

The children — who investigators say were unable to count to 20 or recite the alphabet — were ages 3 to 17 years when the state Department of Human Services raided their property and took them into emergency custody in October 2011.