Norway's Reach Subsea has struck a deal to keep a P&O Maritime Logistics subsea ship in its fleet on a "pay-as-you-go" deal.

The Oslo-listed company has revised a charter agreement for the 98-loa multifunctional support ship Topaz Tiamat (built 2019).

Reach will operate the unit until demobilisation in December.

The Norwegian subsea company had originally chartered the vessel for a firm period lasting until August 2021.