Israel Gaza: UN warns of 'slaughter' if Israel launches ground assault on Rafah Rafah's population has swelled from 250,000 to 1.5 million as Palestinians have fled to Gaza's southernmost city (picture date: 10 February) A top UN official has warned an Israeli assault on Rafah, Gaza's southernmost city, could lead to a "slaughter". Humanitarian chief Martin Griffiths said Palestinians in Gaza were