Relatives react as they carry a white body bag containing remains of a fire victim that started after the inhabitants ignited candles to light up inside their tents at a camp for displaced Palestinians in Gaza City. AFP
Guterres "calls for this measure to be reversed, stressing that international non-governmental organisations are indispensable to life-saving humanitarian work and that the suspension risks undermining the fragile progress made during the ceasefire," his spokesperson Stephane Dujarric said in a statement.
"This recent action will further exacerbate the humanitarian crisis facing Palestinians," he added.
Israel on Thursday suspended 37 foreign humanitarian organisations from accessing the Gaza Strip after they had refused to share lists of their Palestinian employees with government officials.
The ban includes Doctors Without Borders (MSF), which has 1,200 staff members in the Palestinian territories -- the majority of whom are in Gaza.
NGOs included in the ban have been ordered to cease their operations by March 1.
Several NGOS have said the requirements contravene international humanitarian law or endanger their independence.
Israel says the new regulation aims to prevent bodies it accuses of supporting terrorism from operating in the Palestinian territories.
On Thursday, 18 Israel-based left-wing NGOs denounced the decision to ban their international peers, saying "the new registration framework violates core humanitarian principles of independence and neutrality."
A fragile ceasefire has been in place since October, following a deadly war in Gaza waged by Israel on October 7, 2023.
In November, authorities in Gaza said more than 70,000 people had been killed there since the Israeli war broke out, most of them women and children.
Nearly 80 per cent of buildings in Gaza have been destroyed or damaged by the war, according to UN data, leaving infrastructure decimated.
About 1.5 million of Gaza's more than two million residents have lost their homes, said Amjad Al-Shawa, director of the Palestinian NGO Network in Gaza.
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