Search and rescue teams are racing to find a deep-sea vessel that went missing with five people on board during a dive to explore the wreck of the Titanic ocean liner.
![What we know about the missing Titanic tourist submersible](https://s.france24.com/media/display/730be024-0ec4-11ee-9ab5-005056a90284/w:1024/p:16x9/000_339F3FH.jpg)
Search and rescue teams are racing to find a deep-sea vessel that went missing with five people on board during a dive to explore the wreck of the Titanic ocean liner.