South Bend memorial Hospital spokeswoman Heidi Prescott said Sunday that the five additional children had been released Sunday. A police officer and three other children were previously treated and released following the incident Saturday at the Quality Inn & Suites in Niles.

WNDU-TV reports another patient is in good condition at Lakeland Hospital in Niles.

Niles Police Chief Jim Millin said 13-year-old Bryan Douglas Watts, of Niles, was pronounced dead at Lakeland.

Millin says the children are ages 12 to 14.

Niles Fire Department Mechanical Inspector Capt. Don Wise says a pool heater had improper ventilation.