The statement gives no indication of the likely cost of the work
More details have emerged of the problem which has required the Steam Packet to modify the timings of its Liverpool schedule from early November to the end of December.
The company says the issue at the new ferry terminal is isolated to the front of the vessels where, at certain tidal heights, the most southerly fender on the mooring dolphin clashes with mooring lines.
Both the Ben-my-Chree and the Manxman encountered unexpected challenges when carrying out mooring trials at the company's new Liverpool terminal.
The company says it's working closely with the DoI and the designers to bring forward an appropriate solution.
The DOI has now provided a statement, saying that as part of the process a full investigation is underway.
It says its priority is to establish a way to overcome the issue at hand while minimising disruption for passengers.
The statement gives no indication of the likely cost of the work.
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