KUSA - 9NEWS learned Sunday night that Children's Hospital has temporarily closed the Gary Pavilion on the medical campus.

There have been clusters of cases of gastrointestinal illnesses there-including vomiting and diarrhea.

Some of the patients and staff are sick.

The Gary Pavilion building is separate from the main hospital and designated for behavioral health services.

It will be closed and cleaned to stop the spread of the illness.