STORY: Houthi militants are sparking fresh fears for shipping in the Red Sea.This footage, released by the group on Wednesday, shows the damaged cargo vessel Eternity C -- partially submerged before eventually sinking after an attack.

A Greek-owned cargo ship, 'Eternity C', was attacked by Houthi rebels in the Red Sea, leading to its sinking. The assault, conducted with drones and missiles, has left four sailors dead and others missing.

Six crew members have been rescued from a Liberian-flagged cargo ship in the Red Sea, according to a European Union naval force, after an attack claimed by Yemen’s Houthi rebels.