Deep Sea Supply has secured a contract extension for two of its platform supply vessels.

Oslo-listed Deep Sea Supply says the 4,000-dwt Sea Tortuga and Sea Triumph (built 2014) have been kept on for seven more months.

The deal is with an oil major off Australia, where the ships have been working since March 2015.

Deep Sea Supply has laid-up 17 of its 37 ships due to the difficult market situation.