By Renee Maltezou and Jonathan Saul ATHENS (Reuters) -Rescuers pulled six crew members alive from the Red Sea after Houthi militants attacked and sank a second ship this week, while the fate of another 15 was unknown after the Iran-aligned group said they held some of the seafarers.

At least three of the 25 people on board the Eternity C were killed after it was attacked by the Iran-backed group.

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.