“Children in Gaza cannot wait to eat,” said Jason Lee, country director for Save the Children in the occupied Palestinian territory. “They are already dying from malnutrition and saving their lives is a matter of hours or days—not weeks.”

“But trucks of food and medicines that could save lives are waiting at crossings, while children are starving just miles away,” Lee continued. “Airdrops, with no on-the-ground coordination of who it reaches, and maritime corridors like the one announced yesterday, are no solutions to keep children alive. Neither are substitutes for unimpeded humanitarian assistance via the established land routes.”

The president also said Israel, whose military is armed to the teeth with U.S. weaponry, “must do its part” by allowing “more aid into Gaza”—but did not threaten any consequences if the Netanyahu government refuses.

Ground deliveries into Gaza have plummeted in recent weeks as Israeli forces have attacked aid convoys and prevented trucks from entering and moving through the territory. A World Food Program (WFP) official said earlier this week there’s enough food to feed Gaza’s “entire population” sitting just outside of the strip.