Israel expands ground assault into Gaza as fears rise over airstrikes near crowded hospitals

Israeli troops and armor pushed deeper into the northern Gaza Strip on Monday, reaching built-up areas as the U.N. and medical staff warned that airstrikes are hitting closer to hospitals, where tens of thousands of Palestinians have sought shelter alongside thousands of wounded. The increasing ground operations came a day after 33 trucks carrying food, medicine and other supplies entered Gaza from Egypt, the largest convoy of humanitarian aid since the war between Israel and Hamas began.