US President Donald Trump’s peace envoy Jared Kushner says Washington will not allow Gaza to be rebuilt until the Palestinian enclave is fully demilitarised. Kushner made the comments after meeting Hamas officials in Cairo and Israeli Prime Minister Benjamin Netanyahu.

A UN expert warned Monday that large-scale rubble removal in parts of Gaza under Israeli control risked erasing traces of "atrocity crimes", and preventing the recovery and identification of human remains.

Francesca Albanese, the United Nations special rapporteur on the Palestinian territories, warned in a statement that the implications of Israel's "ongoing removal, crushing and relocation of rubble in Gaza" were "profound".

"Gaza's rubble contains human remains and physical evidence relevant to the investigation of alleged international crimes, including genocide," she said, pointing to estimates from Palestinian authorities that more than 10,000 people remain buried under the debris in the war-ravaged Palestinian enclave.

The Italian-born independent expert has faced harsh criticism from Israel and some of its allies over her long-standing accusations that Israel is committing genocide and other war crimes against Palestinians in Gaza and the occupied West Bank.