The Israeli military has intercepted a Gaza-bound aid ship, detaining 21 international activists and journalists and seizing all cargo, including baby formula, food, and medicine, according to the Freedom Flotilla Coalition.

Israel has said foreign nations will be able to air drop supplies into Gaza as international pressure mounts in the face of widespread starvation.

An analysis compiled by USAID officials says they failed to find evidence that Hamas engaged in widespread diversion of assistance in Gaza, ABC News has learned.

Secretary-General of the United Nations António Guterres described the humanitarian situation in Gaza as a moral crisis that challenges the global conscience. Follow for live updates.

Israel has long restricted aid to Gaza on the argument that Hamas steals it to use as a weapon of control over the population. On Saturday, the Israeli military announced new airdrops of aid.