US President Donald Trump's Board of Peace has called on Israel to immediately allow all necessary humanitarian supplies into Gaza after rain flooded tens of thousands of tents.
The US-backed body, established to oversee the implementation of Trump's Gaza peace plan, acknowledged the steps now being considered by Israel, but said "the response remains insufficient".
Israel's military agency in charge of co-ordinating aid into Gaza said it had allowed in tens of thousands of tents and trucks with winter supplies, but added reconstruction "can only begin after Hamas fully disarms".
On Sunday, three children and a woman were killed when a sand embankment collapsed onto tents in the central Strip.
Most people in Gaza have been displaced because of Israel's military actions. Around 65% of the population, about 1.4 million people, now live in tents or makeshift shelters, the UN says.
Standing soaked in Gaza City, Mohammed Jneid told the AFP news agency that heavy rains hit from one side and sewage overflowed on them from the other, with the ground and tents no longer able to hold.
"We have nothing left, no bedding, no food, nothing," he said.
Sitting inside her tent, Islam Al Mobayed told AFP there were seven children there, five of them young.
