PHOENIX (Reuters) – The 4-year-old daughter of former heavyweight boxing champion Mike Tyson has died, a day after being found with cord tied around her neck in an apparent accident at her home, Phoenix police said on Tuesday.

“Exodus Tyson was pronounced deceased at 11:45 a.m. today at the hospital. Our sympathies go out to the family,” police spokesman Andy Hill said in a statement.

Media reports said Exodus Tyson was playing near some exercise equipment when she accidentally got tangled in a cord or rope hanging from a treadmill on Monday. She was taken to a Phoenix hospital in critical condition.

Police said the incident appeared to be an accident.

The girl was home with her mother when the accident occurred Monday. Tyson was not in Phoenix at the time, but was shown on television arriving at the hospital later that day.

The former world heavyweight champion has six children by several different women.