Israel has been pushing deeper into Gaza City, and its troops have been searching Gaza's biggest hospital, Shifa, for traces of a Hamas command centre that Israeli forces allege was located under the building.
They have displayed images of what they said was a "tunnel entrance" and weapons reportedly found in a truck inside the compound but no evidence of the command centre, which Hamas and Al-Shifa staff deny existed.
Israel has also barred fuel shipments into Gaza since the beginning of the war but permitted very limited shipment to UNRWA earlier this week for trucks delivering a limited quantity of food after the agency's fuel reservoir ran dry.
Gaza is now receiving only 10 percent of its needed food supplies daily, and dehydration and malnutrition are growing with nearly all of the 2.3 million people in the territory needing food according to the United Nations' World Food Program.
Fuel is needed for generators that run emergency communication systems, hospitals, desalination plants and other critical infrastructure in Gaza.
More than 11,470 Palestinians have been killed, two-thirds of them women and minors, according to Palestinian health authorities.
Another 2,700 have been reported missing, believed buried under rubble.