TEL AVIV, Israel -- Israel faced sharp criticism as it stopped the entry of all food and other supplies into Gaza on Sunday and warned of “additional consequences” for Hamas if a fragile ceasefire isn't extended. Mediators Egypt and Qatar accused Israel of violating humanitarian law by using starvation as a weapon.

Washington has put forward an alternative ceasefire proposal, which would allow captives to be exchanged without the Israeli army having to leave Gazan territory. Hamas refused and negotiations stalled.

Food, medicine and shelter stockpiles in Gaza are limited and aid intended for Palestinians in desperate need may spoil following Israel's suspension of deliveries to the enclave, humanitarian agencies said on Monday.