North Korea is subject to UN sanctions because of its nuclear weapons programme that were extended to OMM after one of its ships was found carrying weapons from Cuba.

The report claims OMM has renamed 13 of its 14 ships, and transferred their management to other shell companies in moves intended to evade a UN blacklist operated by the IMO.

"These changes are likely a strategy to evade asset freezes by member states," the report said.

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