A Houthi unmanned surface vessel detonated in the Red Sea on Thursday, a US navy commander said, adding that there were no casualties, Report informs citing Anadolu.
"Since November 18, there have now been 25 attacks against merchant vessels transiting the Southern Red Sea and Gulf of Aden.
"The latest was early this morning when a Houthi one-way attack, unmanned surface vessel or USV detonated in international shipping lanes," Vice Admiral Brad Cooper told reporters.
Cooper said there were no casualties and no ships were hit, but the new tactic is "of concern."
Yemen’s Houthi have targeted vessels in the Southern Red Sea, warning it will attack all Israel-bound ships.