The United States struck targets in the Yemeni capital of Sanaa on Wednesday, Houthi-run Al Masirah TV reported, the latest in a wave of strikes carried out in retaliation for attacks by the Iran-aligned group on shipping in the Red Sea.

Yemen's Houthi rebels say there have been fresh US strikes against them, with the number of dead rising to 53, including five children. Targets in the Al Jaouf and Hudaydah areas were hit early on Monday, according to the rebel group, while the US Central Command said its forces had continued operations.

U.S. Central Command continued strikes against the group Sunday and Monday, launching a campaign that may last weeks, officials said.