From the article:
All five people aboard the Titan submersible are believed to be dead, and debris discovered in the search area was consistent with a "catastrophic implosion," the U.S. Coast Guard said.
The debris was found off the bow of the sunken Titanic, officials said.
The search for the Titan, which went missing Sunday after it embarked on a mission to survey the wreckage of the Titanic, had been focused on an area where Canadian aircraft detected "underwater noises" Tuesday and again yesterday.
U.S. Coast Guard officials had estimated the five passengers could run out of air just before 7:10 a.m. ET today, and the location of the missing vessel had remained a mystery even as the search intensified.