Titanic submersible, 40 hours of oxygen left
Titanic submersible, 40 hours of oxygen left

Titanic submersible, 40 hours of oxygen left

The search for the missing submersible used to take tourists to see the wreckage of the Titanic has now covered 7,600 square miles, the U.S. Coast Guard says. The five-person submersible was reported overdue Sunday night some 435 miles south of St. John's, Newfoundland.

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