EL DORADO, Kan. (AP) — The father of an 18-month-old El Dorado girl who died while living in a meth house is suing the state, saying investigators did not do enough to protect his child.

Jayla Haag died in March 2012 in El Dorado. Her mother, Alyssa Haag, pleaded guilty last year to involuntary manslaughter after originally being charged with first-degree murder.

The girl’s father, Steven T. Watters, sued the Kansas Department of Children and Families last month. He alleges the department was told Jayla was being abused while living in the meth house and did nothing to protect her.

The Wichita Eagle reports a spokeswoman for the state agency says the legal division was reviewing the lawsuit and the state would have no further comment.