As the United States and the United Kingdom launched a wave of strikes against the Houthis in Yemen this weekend, national security adviser Jake Sullivan said Sunday to expect additional strikes against Iran-backed targets.

Sullivan told Meet the Press that the U.S. intends “to take additional strikes” on Iran-backed targets. The U.S. and the U.K. launched a third wave of airstrikes against the Iran-backed Houthi targets in Yemen on Feb. 3.