Yemeni soldiers loyal to the Iran-backed Shiite Huthi rebels set up a checkpoint as authorities tighten up security measures in the Yemeni coastal city of Hodeidah on June 14, 2018. The UN Security Council on June 14, called for a key port in war-ravaged Yemen to be kept open to deliveries of vital food and humanitarian supplies after the Saudi-led coalition launched an offensive to seize Hodeida. / AFP / ABDO HYDER
Houthi fighters man a checkpoint in Hodeidah on June 14, 2018, a day after pro-government forces announced an offensive to retake the city. Abdo Hyder / AFP

Three killed as Houthis open fire on prisoners in Hodeidah