UN halts humanitarian work in Yemen's Houthi stronghold after staff detentions

The United Nations has suspended humanitarian operations in northern Saada after rebels detained eight more U.N. staffers, during one of the world's worst humanitarian crises.

A spokesman for the Houthis didn’t immediately respond to messages seeking comment.

The rebels in recent months have detained dozens of U.N. staffers, as well as people associated with aid groups, civil society and the once-open U.S. Embassy in Sanaa, Yemen’s capital. None of the U.N. staffers has been released.