Gaza remains at high risk of famine as war between Israel and Hamas continues and access to aid is restricted, though the delivery of supplies had limited the projected spread of extreme hunger in northern areas, a global monitor said on Tuesday.

More than 495,000 people across the Gaza Strip are facing the most severe, or "catastrophic," level of food insecurity, according to an update from the Integrated Food Security Phase Classification (IPC).

That is down from a forecast of 1.1 million in the previous update three months ago, but is still more than one fifth of Gaza's population.