The 35-year-old mother of two Detroit children whose frozen bodies were found in a deep freezer in their home is due in court on five counts of first-degree child abuse.

Mitchelle Blair faces arraignment Thursday. She could face more serious charges once investigators determine how the children died.

Blair was arrested Tuesday after court officers serving an eviction notice opened the freezer and found the bodies of her daughter Stoni Ann Blair and her son Stephen Gage Berry.

Autopsies are scheduled Thursday, but could be delayed if the bodies haven't thawed.

Prosecutors believe Stoni was 13 and Stephen was 9 when they died. Stoni would have been 15 now, if alive, and Stephen would have been 11.

Blair's 17-year-old daughter and 8-year-old son have been placed in protective custody.