By Renee Maltezou and Jonathan Saul ATHENS/LONDON (Reuters) -Rescuers pulled three more crew members and a security guard alive from the Red Sea on Thursday, maritime security sources said, a day after Houthi militants sank the Greek ship Eternity C and said they were holding some of the crew still missing.

The attack on the Greek-owned Eternity C follows the Iranian-backed Houthis attacking another vessel, the bulk carrier Magic Seas, on Sunday in the Red Sea, which they subsequently sank.