The Trump administration says it will designate Yemen's Houthi movement a terrorist organization, in a move that has elicited consternation from international aid organizations and authorities.
Secretary of State Mike Pompeo says the U.S. wants to "deter further malign activity by the Iranian regime" that backs the Houthis.
The designation is set to take effect on Jan. 19 — the day before Trump leaves office and President-elect Joe Biden is sworn in.