In this Dec. 6, 2017 file photo, Houthi Shiite rebels inspect the rubble of the Republican Palace that was destroyed by Saudi-led airstrikes, in Sanaa, Yemen. Airstrikes by Saudi Arabia and its allies in Yemen are on a pace to kill more civilians in 2018 than last year despite US claims that the coalition is working to prevent such bloodshed, a database tracking violence shows. The war, nearly four years old, may have killed as many as 80,000 people, according to the figures. (AP Photo/Hani Mohammed, File)
SANAA, Yemen — Street battles raged on Sunday in several areas of Yemen’s contested port city of Hodeida, where a U.S.-backed, Saudi-led coalition is trying to drive out Iran-backed Shiite rebels, officials said.