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.

A new attack targeted a ship traveling through the Red Sea on Monday after another claimed by Yemen’s Houthi rebels reportedly sunk a vessel. The private security firm Ambrey said two security guards aboard the Liberian-flagged bulk carrier had been hurt in the latest attack,

A Liberian-flagged cargo ship came under fire on Monday in the Red Sea, with two security guards on board reportedly hurt and two others missing in an assault that came after Yemen's Houthi rebels purportedly sunk another vessel in a similar attack.