GAZA - Israel's war on Gaza has left more than 3,500 children under the age of five at risk of starvation.

This is due to Israel's move to block the entry of humanitarian aid, which has resulted in a lack of food and nutritional supplements, the Palestinian enclave's media office said on Monday.

It accused Israel of pursuing a policy of starvation in Gaza.

Thousands of children in the enclave suffer from advanced malnutrition and are unable to receive vaccinations, the media office said, adding that most minors require advanced psychological treatment.

About 15,438 children have been killed since the war began, with 17,000 orphaned, it said.