Houthi militants have used the targeted facilities to conduct attacks on U.S. Navy warships and merchant vessels in the southern Red Sea and the Gulf of Aden, according to Central Command.

Airstrikes targeting Houthis in Yemen on Monday and Tuesday, conducted by U.S. Navy ships and aircraft, hit a command hub and weapons production facility as well as a bunker housing missiles and drones.

SANAA -- Multiple airstrikes hit Yemen's capital Sanaa on Tuesday afternoon, targeting military sites under Houthi control and rocking the whole city, according to local witnesses.