Palestinians lined up outside bakeries and grocery stores in Gaza on Thursday after spending the night surrounded by the ruins of pulverized neighbourhoods darkened by a near-total power outage. Israel launched new airstrikes and said it was preparing for a possible ground invasion.

International aid groups warned that the death toll in Gaza could mount after Israel stopped all deliveries of food, water, fuel and electricity and the tiny enclave’s crossing with Egypt closed. The war—which was ignited by a bloody and wide-ranging assault on Israel by Hamas militants—has already claimed at least 2,500 lives on both sides.