Up to ten Palestinians have been killed and dozens are injured as the offensive in Gaza continues.
The school in Rafah was being used to shelter around 3,000 Palestinians.
Just days ago, Israel was accused of shelling a similar building.
Dr Abou Abed of Medicins Sans Frontieres is working at the Al Shifaa Hospital in Gaza.
He told the Savage Sunday here on Today FM that the hospital is swamped: