The US Coast Guard is expanding its search for a submersible which went missing on a dive to the Titanic shipwreck with specialist equipment being brought in as concerns grow for the crew on board and oxygen supplies dwindling.
The Coast Guard searched an area "about the size of Connecticut" overnight for the missing submarine, which has five people inside.
As the search continues this morning, the team is expanding its capabilities to be able to search under the water as well, according to US Coast Guard First District Commander Rear Admiral John Mauger.
