On Tuesday, UN Secretary-General Ban Ki-moon toured the UN’s badly damaged headquarters in Gaza City. The compound was set aflame when Israel attacked it last week, burning hundreds of tons of desperately needed aid stored in warehouses. Ban Ki-moon said he was “appalled” at the destruction.

UN Secretary-General Ban Ki-moon: “Ladies and gentlemen, I have seen only a fraction of the damage. This is shocking and alarming. This is heartbreaking scenes which I have seen, and I am deeply grieved by what I have seen today. I’m just appalled. I’m not able to describe how I’m feeling, having seen this site of the bombing of the United Nations compound. Everyone is now smelling this burning still. It is still burning. This, an outrageous and totally unacceptable attack against the United Nations.”

The UN has called for the attack to be investigated as a war crime. Hamas, meanwhile, has begun to re-assert control over the Gaza Strip. On Tuesday, thousands of Palestinians marched through Gaza in a Hamas-led rally.