Israel's suspension of goods entering Gaza has begun to take a toll on the Palestinian enclave, with some bakeries closing and officials warning of growing risks to the environment including possible discharges of raw sewage into the sea.

As a tenuous ceasefire verges on collapse, Israel says it will take direct control of all humanitarian aid entering and distributed inside Gaza, according to agencies briefed on the plan.

Human rights groups stress that weaponizing starvation by intentionally depriving civilians of lifesaving aid is a war crime under international humanitarian law.