The search for those missing after Yemen’s Houthi rebels sank a ship in the Red Sea has ended as at least four people are presumed dead and 11 others remain unaccounted for.

Commercial ships are broadcasting messages about their nationality and even religion on their public tracking systems to avoid being targeted by Yemen's Houthis.

The Iran-backed Houthis released a new video showing their attack on the Liberian-flagged cargo ship Eternity C which sank in the Red Sea on Wednesday, killing several crew members according to media reports.