This might be a tacit admission by the Israelis that they need to do more - but more likely the measures are a response to allies.

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.

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 humanitarian catastrophe that we are witnessing in Gaza must end now," a joint statement from the three countries reads.

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,