Many displaced Gazans are living “in the open, in the parks,” Juliette Touma of the UN relief agency for Palestinian refugees, UNRWA, has told the BBC.

According to the UN’s humanitarian office (OCHA), at least 100,000 people have fled to Rafah - which borders Egypt in Gaza’s south - in recent days.

UNRWA’s Ms Touma said the UN was being authorised to bring in “limited assistance”.

But Gaza’s humanitarian needs, she said, “have massively grown”.

She said UNRWA continued to face “restrictions to access areas in the Gaza Strip where we should access”.