A tanker in the Red Sea off Yemen's coast was fired on by gunmen in a speedboat and targeted with missiles, maritime sources said on Wednesday, the latest incident to threaten the shipping lane after Yemeni Houthi forces warned ships not to travel to Israel, Paralel.Az reports citing Reuters.

A second commercial vessel was also approached by the speedboat in the same area though not attacked, British maritime security firm Ambrey and other sources said.

Separately, a U.S. defense official in Washington said the U.S. Navy destroyer Mason on Wednesday shot down a Houthi drone launched from Yemen that was headed in its direction as it responded to reports of an attack on a commercial vessel.

The U.S. official said Houthis had attacked the commercial vessel Ardmore Encounter in skiffs and then two missiles were fired from Yemen that missed the ship. The Ardmore Encounter reported no damage or injuries and continued on its way.