Yemen's Houthi rebels killed 3 mariners with an attack on a ship in the Red Sea, a European naval force says, fueling concern over a possible new wave of attacks by the Iran-backed group.

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.

Two crew members of a Liberian-flagged cargo ship have been killed in an attack in the Red Sea off the coast of Yemen, Liberia says. A Liberian representative to the International Maritime Organization (IMO) said the Eternity C was "attacked horribly... causing the death of two seafarers".