USV Houthi.

This is coolbert: 

Hootie Tootie, unmanned surface vessels, putt-putt boghammer type naval attack remotely controlled weapon of war.

Crammed chock-full of high explosive. These vessels will attack and use a swarm formation and can presumably destroy a large warship or commercial vessel Red Sea.

"Houthis launch sea drone to attack ships hours after US, allies issue final warning"

From AP ^ | 1/4/24 | Tara Copp.

"WASHINGTON (AP) — An armed unmanned surface vessel [USV] launched from Houthi-controlled Yemen got within a 'couple of miles' of U.S. Navy and commercial vessels in the Red Sea before detonating on Thursday, just hours after the White House and a host of partner nations issued a final warning to the Iran-backed militia group to cease the attacks or face potential military action. Vice Admiral Brad Cooper, the head of U.S. Navy operations in the Middle East, said it was the first time the Houthis had used an unmanned surface vessel, or USV"

Also this:

"Houthi explosive boat found"

  By H I Sutton | 13 July 2019.

"Houthi 'Blow fish' low-profile explosive boat found in Red Sea SLOC"

Hootie Tootie, controlling a much less portion of the Red Sea coast line then I expected. Their current dominion not extending south and eastward beyond Bab el-Mandeb.

coolbert.