The Iran-backed Houthis on Sunday raided offices of the United Nations’ food and children’s agencies in Yemen’s capital, detaining at least one U.N. employee, officials said

CAIRO — Iran-backed Houthis on Sunday raided offices of the United Nations’ food, health and children’s agencies in Yemen’s capital, detaining 11 U.N. employees, officials said. The rebels tightened security across Sanaa following the Israeli killing of their prime minister and several Cabinet members.