More than 80,000 people have fled the southern Gaza city of Rafah since Monday, the UN says, as Israeli tanks reportedly mass close to built-up areas amid constant bombardment. Palestinian armed groups said they were targeting Israeli troops to the east. Israel's military has said its ground forces are conducting "targeted activity" in eastern Rafah. The UN also warned that food and fuel were running out because it was not receiving aid through nearby crossings. Israeli troops took...