Japan’s ClassNK is leading the probe into the cause of theincident involving the 2008-built, 8,110-teu containership on 17 June.

Each half of the ship subsequently sank while under towtowards the Arabian peninsula making it much harder to determine the cause ofthe break-up.

The Japanese class society's casualty investigation unit is preparing to submitits final report early next month.

However as a result of the preliminary findings three of theships have already been modified by Mitsubishi Heavy Industries and returned toservice.

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