At least 44 people waiting for aid have been killed by Israeli fire in two incidents, rescuers and hospitals say.

Israeli forces and drones opened fire toward hundreds of Palestinians waiting for aid in separate incidents in southern and central Gaza early Tuesday, killing at least 44, witnesses and hospitals said,

Gazans caught up in violence seeking food, and the U.N. agency tasked with helping them, say a U.S.-backed aid effort is "costing more lives than it saves."