Ohio ? A woman suspected of killing her month-old daughter by putting her in a microwave oven was indicted on a charge of aggravated murder Thursday, and the prosecutor said he would seek the death penalty.

The indictment against China Arnold, 26, does not provide details on the death of Paris Talley.

Investigators have said evidence that includes high-heat internal injuries and the absence of external burn marks on the baby were consistent with a microwave oven. The baby died on Aug. 30, 2005. Her mother was arrested last week.

“The Montgomery County coroner came to the conclusion that the injuries sustained by this baby could have only been caused by being placed into a microwave oven and having that oven turned on and (cooking) the baby to death,” Montgomery Country Prosecutor Mathias Heck Jr. said at a news conference.

Heck declined to discuss a possible motive or release any other details about the case. He said Arnold would be subject to the death penalty if convicted because the victim was a child.