Japanese tour company admits to shortcomings that led to fatal capsizings off Okinawa

The coast guard is still investigating the incident to determine the probable causes and to identify the extent of responsibility of the parties involved.

"In our position as the party responsible for managing the overall travel itinerary, we sincerely acknowledge that we were not able to fully perform our important, original role in itinerary management, such as providing appropriate advice and alerts," Tobu Top Tours said in its statement.

The two vessels were on a tour of the waters off Henoko near an ongoing US military base relocation project when the incidents occurred.

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