Relief organizations: Our protection in Gaza lies with Israel. At least 196 humanitarian workers have been killed so far in the six-month-old war.
The United States said on Tuesday that it was "unacceptable and inexcusable" that the Israeli military's measures to avoid harm to aid workers were not working as they should. Oxfam: "If there was any doubt, it is Israel's responsibility to avoid harming us," said Bushra Al-Khalidi, policy advisor at Oxfam.