The U.N. warned on Monday that the humanitarian situation in Yemen is worsening and that gains made to tackle malnutrition ...

UNITED NATIONS (AP) — The United Nations chief called on Yemen’s Houthi rebels on Tuesday not to prosecute detained U.N. personnel and to work “in good faith” to immediately release all detained staff ...

A guard outside the United Nations compound in Sanaa, Yemen, following reports of staffers being detained by the Houthis in October [File: Khaled Abdullah/Reuters] United Nations Secretary-General ...