The daughter of boxer Mike Tyson is in critical condition after accidentally hanging herself, according to multiple media reports in Phoenix.

Four-year-old Exodus Tyson was found hanging from a cord on a treadmill by her 7-year-old brother, according to reports. Her mother cut her down and began administering CPR before paramedics arrived.

"Apparently she and her older brother were watching TV in the TV room," Phoenix police sergeant Andy Hill told KTAR radio station. "There was also a number of pieces of exercise equipment, and somehow the little girl got herself on a piece of equipment and she ended up kind of choking herself."

Police told the media that the girl was in extremely critical condition at St. Joseph's Hospital. Mike Tyson was reportedly not at the home at the time of the accident but was rushed to the hospital.