Johan Mooij expects food supplies in Yemen’s capital of Sana to run out in about six weeks. Mooij is the Yemen country director for CARE, one of several dozen humanitarian groups working with the United Nations to distribute food to millions of people in Yemen.

Even before Saudi Arabia blockaded Yemen two weeks ago, the situation was deteriorating. Now, he warns of disaster. “People are getting really worried,” says Mooij, who is based in the capital.

The humanitarian crisis in Yemen continues to worsen since the Saudi-led blockade of the country began two weeks ago. A Saudi-led coalition, supported by the U.S., has been fighting Houthi separatists in Yemen for three years, and on Nov. 5, Saudi Arabi closed air, land, and seaports to seal off the country. United Nations officials have said that seven million people face risk of famine and called the situation “catastrophic.” Saudi Arabia said it would open some ports last week, but aid workers like Mooij continue to report difficulty. The U.N. has said its staff has not been able to move though Sana since the blockade. At least seven million people rely on the U.N. and other NGOs for food aid.

Read the full article Elizabeth Dias about Yemen food crisis from Time