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.

Earlier, aid agencies criticised Israel's airdrop plan arguing it would deliver very little and and endanger civilian lives.

A joint statement called for an immediate ceasefire and said that “withholding essential humanitarian assistance to the civilian population is unacceptable."

Prime Minister Benjamin Netanyahu broke the last cease-fire in the Gaza war on March 18 by launching air strikes that killed more than 400 Palestinians in 36 hours, a reported 183 of them children. He had also imposed a total blockade on March 2,

The focus on air drops into Gaza is a "grotesque distraction" that will not reverse the territory's deepening starvation crisis, aid agency leaders have warned. Israel's military said it would allow aid to be dropped into Gaza on Saturday night, while also announcing humanitarian corridors for UN aid convoys.

CNN’s Nic Robertson is on the scene at the Kerem Shalom border crossing with assistance trucks as aid agencies warn of rampant hunger caused by Israel’s blockade of Gaza. While trucks do move across the border,