Two crew members of the Liberia-flagged, Greek-operated, bulk carrier Eternity C have been killed following an attack by sea drones and speed boats, Liberia's shipping delegation told a meeting of the UN shipping agency IMO.
The incident is reported to have happened off Yemen yesterday evening.
The deaths, the first since June 2024, bring the total number of seafarers killed in attacks on vessels in the Red Sea to six.
The vessel's bridge was hit and telecommunications were impacted, a company official said.
Maritime security sources said the vessel, which was unladen, has suffered severe damage and is currently listing. The crew was ordered to abandon the ship, but the lifeboats had been destroyed, two sources said.
The ship was adrift, an Aspides official said. At the time of the incident, no warship of the Aspides mission was close to the vessel.
There was no claim of responsibility for the attack, so far.
Earlier yesterday, the Houthis claimed responsibility for Sunday's attack on the Greek-operated MV Magic Seas bulk carrier off southwest Yemen. The raid involved gunfire and rocket-propelled grenades from eight skiffs as well as missiles and four uncrewed surface vessels.
The 19 crew were forced to abandon the Liberian-flagged vessel as it was taking on water. They were picked up by a passing ship and have arrived safely in Djibouti, sources said.
The Houthis said they sunk the vessel. But Michael Bodouroglou, a representative of Stem Shipping, one of the ship's commercial managers, said there was no independent verification.
Growing operational risk
The crew had reported fires at the vessel's forepeak, in the bow. The engine room and at least two holds were flooded, and there was no electricity.
Aspides had earlier warned of a risk of explosion in the ship's vicinity.
Since Israel's war in Gaza against the Palestinian militant group Hamas began in October 2023, the Houthis have been attacking Israel and vessels in the Red Sea in what they say areacts of solidarity with the Palestinians.
Israel has struck Houthi targets in response, launching strikes yesterday for the first time in nearly a month. A US-Houthi ceasefire deal in May did not include Israel.
The latest attacks highlight a growing operational risk to commercial operators whose vessels have called at Israeli ports, Maritime security firm Diaplous said.
Magic Seas was carrying iron and fertilisers from China to Turkey, a voyage that appeared low-risk as it had nothing to do with Israel, Bodouroglou said, adding that Stem Shipping had received no warning of the attack.
But the fleet of Allseas Marine, Magic Seas' other commercial manager, had made calls to Israeli ports over the past year, according to analysis by UK-based maritime risk management company Vanguard Tech.
"These factors put the Magic Seas at an extreme risk of being targeted," said Ellie Shafik, head of intelligence with Vanguard Tech.
The manager of Eternity C is also affiliated with vessels that have made calls to Israeli ports, security sources said.
John Xylas, chairman of the dry bulk shipping association Intercargo, said the crew were "innocent people, simply doing their jobs, keeping global trade moving".
"No one at sea should ever face such violence," he said.