'We have to remain optimistic and hopeful' over missing Titanic sub - Coast Guard
The US Coast Guard remains "optimistic and hopeful" about finding the Titanic sub that went missing on Sunday, Captain Jamie Frederick has said.
A commander leading the search earlier told the BBC the crew may have only around 20 hours of oxygen left.
Related topics
- Titanic submersible accidentUpdates from your News topics will appear in My News and in a collection on the News homepage.
- RMS TitanicUpdates from your News topics will appear in My News and in a collection on the News homepage.
- Sinking of the TitanicUpdates from your News topics will appear in My News and in a collection on the News homepage.
- Newfoundland and LabradorUpdates from your News topics will appear in My News and in a collection on the News homepage.
- United StatesUpdates from your News topics will appear in My News and in a collection on the News homepage.
- CanadaUpdates from your News topics will appear in My News and in a collection on the News homepage.