Associated Press - 

The 4-year-old daughter of former heavyweight champion Mike Tyson died Tuesday, a day after what police called a "tragic accident" in her home. Phoenix police spokesman Andy Hill said Exodus Tyson was pronounced dead in a hospital just before noon.

Police said the girl was playing on a treadmill Monday in her central Phoenix home when she either slipped or put her head in the loop of a cord hanging under the console.

Exodus' 7-year-old brother found her and told their mother, who was in another room. She took Exodus off the cord, called 911 and tried to revive her.

Responding officers and firefighters performed CPR on Exodus as they took her to the hospital, where she had been listed in critical condition since Monday.

Tyson was in Las Vegas at the time of the accident and flew Monday to Phoenix, where he was seen entering the hospital.

Cynthia Schwartz, a spokeswoman for Tyson, said the family would release a statement Tuesday evening. They had not made any funeral arrangements, she said.

Hill said it was unclear whether an autopsy would be performed.