Almost 450,000 people have fled Rafah in the southern Gaza Strip following Israeli evacuation orders earlier this month, according to the U.N. agency for Palestinian refugees (UNRWA). Satellite imagery showed swelling numbers of people in central Gaza, as fighting and strikes intensified in parts of the north. Hospitals are facing possible shutdowns as concerns about hunger grow, with the Rafah border crossing between Gaza and Egypt closed to aid for a week, the Gaza Health Ministry and the U.N. humanitarian affairs office warned.