A worst-case scenario of famine is unfolding in Gaza and immediate action is needed to end fighting and allow unimpeded aid access, a global hunger monitor warned on Tuesday, saying failure to act now would result in widespread death.

Access to food has plummeted to unprecedented levels, a monitoring group warned, as global outrage over Israel’s aid restrictions persisted.

U.N. officials say many people in Gaza are experiencing "famine-like conditions." Health experts who have studied past famines warn that the fallout can reverberate across generations.

The leading international authority on food crises predicted "widespread death" in Gaza without immediate action.

Aid agencies say many Gazans are hungry and malnourished. Amal Nassar says her family is among them, and price gouging is making things worse.

The announcement comes as severe acute malnutrition continues to rise across Gaza. One-fifth of children are currently affected, and up to half of those may not survive, Dr. Zaher Sahloul, co-founder and president of MedGlobal, told “NewsNation Now” on Monday.

Asked about Gaza, the president expressed disappointment about not receiving sufficient thanks for the United States’ aid shipments.

"People are literally dying with the hunger; the hunger is killing them. Starvation is being used as a weapon," Dr. Bilal Piracha said.