DUBAI, United Arab Emirates (AP) — An attack by Yemen’s Houthi rebels on a Liberian-flagged cargo ship in the Red Sea killed three mariners and wounded two others, a European Union naval force said Tuesday, highlighting the danger of the group’s renewed campaign targeting a key maritime route for international trade.

The attack on the Greek-owned Eternity C follows the Iranian-backed Houthis attacking another vessel on Sunday in the Red Sea that they said subsequently sank. The assaults are the first Houthi attacks on shipping since late 2024 on the waterway that had begun to see more ships pass through in recent weeks.

“We haven’t seen any real attacks on merchant shipping since December last year,” said Wolf-Christian Paes, a senior fellow at the International Institute for Strategic Studies. “And they’re back with a bang.”

The bulk carrier had been heading north toward the Suez Canal when it came under fire by men in small boats and by bomb-carrying drones Monday night. The security guards on board fired their weapons. The EU Operation Aspides and the private security firm Ambrey both reported those details.

While the Houthis haven’t claimed the attack — they can take days to claim one — Yemen’s exiled government and the EU force blamed the rebels, as did the U.S. Embassy in Yemen.

“The Houthis are once again showing blatant disregard for human life, undermining freedom of navigation in the Red Sea,” said the embassy, which has operated out of Saudi Arabia for nearly a decade due to Yemen ‘s wider war. “The intentional murder of innocent mariners shows us all the Houthis’ true colors and will only further the Houthis’ isolation.”

The EU force offered the casualty information, saying one of the wounded crew lost his leg. The crew remains stuck on board the vessel, which is now drifting in the Red Sea.

Yemen's Houthi rebels attack another ship in the Red Sea, killing 3