Four of those killed aboard the submarine that sank off Egypt’s Red Sea resort city of Hurghada were Russian, according to a Facebook post by the Russian embassy in Egypt.

Six Russians died on Thursday and 39 foreign tourists were rescued when a viewing submarine sank off the Egyptian Red Sea resort of Hurghada, the local governor's office said on Facebook, adding that no passengers or crew were still missing.

The crew of a recreational submarine that sank off the Egyptian Red Sea coast killing six Russian tourists and injuring nine other passengers have been questioned by authorities in Egypt amid an ongoing investigation.