A missile strike in the Red Sea damaged a merchant ship off Yemen, as Houthi rebels threatened to expand their harassment campaign, disrupting global trade.
The crew was not injured and the vessel continued its journey, said the Royal Navy's United Kingdom Marine Trade Operations, and security firm Ambrey, after the incident west of the rebel-held port of Hodeida in the early hours of Friday.
"A merchant vessel has reported that they have been struck by a missile and the vessel has sustained some damage," said UKMTO.
Ambrey said the "vessel was listed as Israel-affiliated but had changed ownership in February 2024," adding that it was headed from Singapore to the Suez Canal with armed guards onboard.
The same tanker was nearly hit by a missile southeast of Yemen's port of Aden the previous day, Ambrey said.
There was no immediate claim of responsibility from the Houthis, who have launched dozens of missile and drone strikes on shipping in the commercially vital seaway over the past four months.
The rebels say they are targeting Israel-linked shipping as part of an "axis of resistance" of Iran allies and proxies, in protest at Israel's war against Hamas in the Gaza Strip.
The Houthi attacks, including a deadly assault on a bulk carrier last week and the sinking of a ship carrying thousands of tonnes of fertilizer, have triggered reprisal strikes by U.S. and British forces.
On Thursday, the U.S. military said it had destroyed nine anti-ship ballistic missiles and two drones after the Houthis fired on ships in the Red Sea and Gulf of Aden.
Such exchanges have become a frequent occurrence in the area, sending shipping insurance costs soaring and prompting many firms to detour around the southern tip of Africa.
Late Thursday, rebel leader Abdul Malik al-Houthi said the Houthis would expand their attacks to ships taking the longer route around Africa's Cape of Good Hope.
"We are moving, with the grace and help of God Almighty, to prevent them from crossing even through the Indian Ocean and from South Africa," he said in a speech broadcast by the rebels' Al-Masirah TV channel.
"We have begun implementing our related operations," he added.
Twelve "targeting operations" using 58 missiles were carried out against commercial and military ships this week in the Red Sea, Gulf of Aden and the Arabian Sea, the Houthi leader said.