Will the crew and passengers of the Titanic explorer be found safely by the end of the week?

A submarine containing tourists exploring the wreck of the Titanic has gone missing and there is currently a search underway:

Will the submarine be located with everyone on board alive (or will everyone who was on board be found alive) by the end of the week?

Resolution criterea:

"The end of the week" means the end of Sunday UK time. So the closing time of this market.
For this to count as "found safely" and resolve to YES, they need to be located with some chance of rescue. So locating the submarine without knowing whether anyone on board is alive or even locating it with the knowledge that the passengers are alive without anyone being able to get to them before their air runs out would resolve to NO.

Let me know if you would like any other elements of the resolution criterea to be clarified.

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Total profit

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Ṁ176

Ṁ161

Ṁ117

Ṁ86

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