The John Fredriksen-backed company now has a total of five PSVs in cold lay-up, according to its latest market update.

The latest unnamed vessels add to the 3,300-dwt Sea Trout (built 2008), 3,250-dwt Sea Angler (built 2007) and 4,700-dwt Sea Falcon (built 2013) which have been laid up since August.

Last month the Cyprus-based shipowner said it was considering laying up ships in the face of downward pressure on rates.