Gaza's Hamas-run health ministry said it rejected "any step that would undermine what remains of the health system".

The UN has said intensifying attacks and "relentless bombardment" in Gaza City are causing a "high numbers of civilian casualties and large-scale destruction". It and aid groups have vowed to stay to help those who cannot or choose not to move.

There are fears that the new military campaign in Gaza City will deepen the humanitarian crisis. The UN-backed Integrated Food Security Phase Classification said last month that the "worst-case scenario of famine" was "playing out in Gaza."

Netanyahu announced Israel's intention to take control of the entire Gaza Strip after indirect talks with Hamas on a ceasefire and hostage release deal broke down last month.