Israel’s bombardment and ground invasion of Gaza, now in its 13th week, have pushed almost all Palestinians toward the southern city of Rafah along the Egyptian border. The area had a prewar population of around 280,000, a figure that has bulged to over 1 million in recent days, according to the UN agency for Palestinian refugees.

Rafah’s apartment blocks are crammed with people, often extended families who have opened their doors to displaced relatives. West of the city, thousands of nylon tents have sprung up. Thousands more people are sleeping in the open, despite the cool and often rainy winter weather. Palestinians seeking refuge in southern Gaza say every day has become a struggle to find food, water, medicine and bathrooms.