A prominent Palestinian hospital director who was arrested by Israel in a raid that closed the last major functioning health facility in northern Gaza is being held at a controversial military base that doubles as a detention facility,

Israel's military on Saturday said a hospital director is being held as a suspected Hamas militant after a north Gaza raid the World Health Organization said left the area's last major health facility emptied of patients and staff.

Israeli forces raided northern Gaza's last hospital and detained its director as a purported Hamas suspect. U.N. officials say he must be freed immediately.

The head of the World Health Organization has called for an end to attacks on hospitals in Gaza. "Hospitals in Gaza have once again become battlegrounds and the health system is under severe threat," Dr Tedros Adhanom Ghebreyesus said.

The head of the World Health Organization on Monday called for an end to attacks on hospitals in Gaza after Israel struck one and raided another in the past few days. "Hospitals in Gaza have once again become battlegrounds and the health system is under severe threat,

Tedros Adhanom Ghebreyesus, on Monday called on Israel to release a prominent clinician detained in the Gaza Strip. The director of the Kamal Adwan Hospital in northern Gaza, Hussam Abu Safia, must be released immediately,