The Navy reportedly detected the sound of the Titan imploding on Sunday morning. Ex-Navy Commander Jeff Eggers said "uncertainty" about the find was likely.
'You are a long way from anything that can give you help,' said Jeff Eggers, a former navy commander who spent four years piloting military mini-submarines
The underwater sounds, heard on Tuesday and again on Wednesday, come at half-hour intervals, suggesting they might be made by people on the missing submersible.