Norway's GC Rieber Shipping has clinched more work for one of its subsea vessels in West Africa.

The company said the 11,800-gt Polar Onyx (built 2014) will continue operating in the region after entering into a four-month time charter agreement with an unnamed client.

The deal starts soon and could be followed by more than two months of options, it added.

Last July, Rieber won a deal for the vessel in Angola.

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