UNITED NATIONS -- The United Nations on Tuesday warned against an Israeli ground invasion of Rafah in the Gaza Strip, saying an offensive could "lead to a slaughter" in the southern region of the Palestinian enclave where more than 1 million people are sheltering. Israel says it wants to flush out Hamas militants from hideouts in Rafah and free Israeli hostages being held there, and is making plans to evacuate trapped Palestinian civilians. "Military operations in Rafah could lead to a slaughter in Gaza. They could also leave an already fragile humanitarian operation at death's door," said U.N. aid chief Martin Griffiths. "We lack the safety guarantees, the aid suppli...Keep on reading: UN warns Israel: Rafah invasion could ‘lead to slaughter’