The search has gotten critical for a missing submarine on an expedition to view the wreckage of the Titanic as the 96 hour oxygen cut off has been reached.
Five people are aboard the sub as it reaches a vital moment in the search.
The Titan submersible is estimated to have a four day supply of air when it launched Sunday morning in the North Atlantic.
A major search was launched using sonar tech, military style aircraft’s and rescue vessels with deep ocean remotely operated vehicles but has since turned up nothing.
The wreckage of the Titanic sits at 12,500 feet at the bottom of the Atlantic Ocean around 380 nautical miles south of Newfoundland.