Two crew members of a Greek-managed vessel were wounded and two were missing in a drone attack off Yemen on Monday, hours after Iran-aligned Houthi militants claimed an assault on another bulk carrier in the Red Sea,

However, the fate of the Liberian-flagged Magic Seas was unclear, with the vessel at risk of sinking, said Michael Bodouroglou, a representative of its operator Stem Shipping. Sunday's assault off the southwest coast of Yemen was the first such incident reported in the vital shipping corridor since mid-April.