UN warns of 'massive loss of life' and 'atrocity crimes' if Israel moves in on Rafah

• The UN warns of 'atrocity crimes' if Israel moves in on Rafah, where over a million are sheltering. 
• Israel has already conducted strikes in Rafah, including one that hit a residential building.
• Aid groups have warned of mass displacement, hunger, and disease impacting Palestinians in Gaza.

The United Nations warned of increased "atrocity crimes" if Israel moves forward with an assault on Rafah in southern Gaza.