Dallas ? A woman who drowned her two children in 2003 was released Friday from a state psychiatric hospital after a judge agreed with doctors that she is now mentally stable.

Lisa Ann Diaz drowned her 3- and 5-year-old daughters by holding their heads under water in the bathtub of their home in the Dallas suburb of Plano. Authorities said Diaz had self-inflicted cuts and stab wounds that she later said were an attempt to commit suicide to be with her daughters.

Diaz, tried only in the older child’s death, was found not guilty by reason of insanity.

Judge Mark Rusch on Thursday ordered Diaz’s release from the Big Spring State Hospital, where she has been for more than two years. He agreed with doctors that the 36-year-old was stable enough to continue treatment for schizophrenia on an outpatient basis.