UN relief worker describes situation in Gaza

A New Zealander working to help refugees in southern Gaza says he's staring at the world's worst humanitarian crisis this century.
Gaza is under a total communications blackout.
Hector Sharp was born in Wellington but now works for the United Nations Relief and Works Agency for Palestine Refugees and he says the illegal embargo on fuel is literally killing people.
He says he had to go onto his roof for signal to send us this message.