It advised ships to pass through the area with caution and report any suspicious activity.
"UKMTO has received a report of an incident 76NM northwest of Al Hudaydah, Yemen. The Master has confirmed sustaining slight damage after being struck by an unknown object on his port quarter. The vessel and crew are safe and continuing to its next port of call," the authority said on X.
Yemen's Houthi rebels vowed in November 2023 to attack any ships associated with Israel until it halts military actions in the Gaza Strip. The attacks prompted the United States to form a multinational coalition, which includes the United Kingdom among others, to protect shipping in the area of the Red Sea, as well as to strike Houthi targets on the ground.