A limited amount of food was delivered to desperate Gazans for the first time since early March on Wednesday, but senior United Nations officials warned the supply was “nowhere near enough” to forestall the worsening humanitarian crisis.

Palestinians in Gaza were still waiting for aid to arrive, U.N. officials said on Wednesday, two days after the Israeli government said it had lifted an 11-week-old blockade that has brought the Palestinian enclave to the brink of famine.