A south-central Kansas mother has pleaded guilty to one count each of involuntary manslaughter while driving under the influence of alcohol and aggravated battery in connection with a fiery rollover traffic crash that killed her 4-year-old daughter and injured her then 2-year-old son last year.

Britne Lee Costello, 33, of Wichita, “pled guilty as charged,” said Dan Dillon, a spokesman for the Sedgwick County District Attorney’s Office. She is scheduled for sentencing on July 25, court records show. Her lawyer did not immediately respond to a message Friday.

Emma Rae Lee Fox died on Feb. 19, 2023, two days before what would have been her fifth birthday, her obituary says.

Authorities have said the girl’s mother, Costello, tried to pass another vehicle as she was driving west on MacArthur when she overcorrected and left the roadway, causing her Ford Explorer to roll and catch fire. A probable cause affidavit released in the case says the Explorer traveled in a ditch for more than 300 feet and over three culverts before “going airborne” and rolling multiple times.

The crash occurred around 5:15 p.m. west of Schulte.

A Sedgwick County Sheriff’s Office deputy, along with several citizens, rescued Costello and her children from the burning vehicle. However, Emma was unresponsive and succumbed to multiple blunt force injuries after the family was taken to Wesley Medical Center for treatment, the affidavit states. Her younger brother sustained a broken collarbone and other survivable injuries, while Costello had a cut on her neck and a possible broken ankle, according to the document.

The affidavit notes that a deputy who applied gauze to Costello’s neck at the crash site “could smell the odor of alcohol coming from” her and inside the ambulance that transported her to the hospital. Emma’s father later informed the deputy that he and Costello “had previously consumed vodka straight from the bottle while he was” at Costello’s home “dropping his children off and assisting with tasks around the house,” the affidavit reveals.

Blood tests showed Costello had a blood-alcohol content of .112 less than two hours after the crash, the affidavit indicates — exceeding the legal limit of .08 to drive in Kansas.

Prosecutors charged Costello in May. She previously pleaded not guilty. At the time of the crash, she lived in Douglass, authorities have said.

4-year-old died in fiery crash near Wichita last year. Now her mom faces charges

Kansas girl, 4, dies after fiery rollover crash west of Wichita