Search teams detected underwater sounds while scanning the North Atlantic for a tourist submersible that vanished with five people aboard during a deep-sea voyage to the century-old wreck of the Titanic, the U.S. coast guard said early Wednesday.

Search teams detected underwater sounds while scanning the North Atlantic for a tourist submersible that vanished with five people aboard during a deep-sea voyage to the century-old wreck of the Titanic, the U.S. coast guard said early Wednesday.