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.

Egyptian officials say a submarine tourist vessel with 45 passengers and 5 crew sank off the country's popular Red Sea coast, killing at least six people.

A recreational submarine taking 45 tourists on an underwater cruise of coral reefs sank off the Egyptian Red Sea resort town of Hurghada, leaving six people dead.