UNITED NATIONS (AP) — The United Nations appealed for $2.8 billion on Tuesday to provide desperately needed aid to 3 million Palestinians, stressing that tackling looming famine in war-torn Gaza requires not only food but sanitation, water and health facilities.

Andrea De Domenico, the head of the U.N. humanitarian office for Gaza and the West Bank, told reporters that “massive operations” are required to restore those services and meet minimum standards — and this can’t be done during military operations.

He pointed to the destruction of hospitals, water and sanitation facilities, homes, roads and schools, adding that “there is not a single university that is standing in Gaza.”

De Domenico said Israel’s recently-ended second major military operation at Shifa Hospital, Gaza’s largest medical facility, was so destructive the facility has been forced to shut down. As an example, he questioned what the military objective was in shooting an MRI scanner that examines parts of the body and can detect cancers.