The US and British militaries bombed multiple sites used by the Iranian-backed Houthis in Yemen on Monday, the second time the two allies have conducted coordinated retaliatory strikes on an array of the rebels' missile-launching capabilities, several US officials said.

According to officials, the US and UK used warship- and submarine-launched Tomahawk missiles and fighter jets to take out Houthi missile storage sites and launchers. The officials spoke on condition of anonymity to discuss an ongoing mission.