The Maritime and Coastguard Agency has issued a statement following its inspection of the Discovery cruise liner in Portland.
It says that the vessel will stay put until safety issues over drills and training have been addressed.
Following inspections on Friday 1 March, the Maritime and Coastguard Agency (MCA) has issued a Detention Notice on the passenger ship Discovery, preventing the vessel from sailing at this time.
This will remain in place whilst the owners and crew undertake revisions to their safety management system."
More top news
The 19-year-old killed father-to-be Shamus McNama at their Bristol family home in February.
A girl who was body-shamed after wearing shorts in a Superdrug store has received an apology from the company.
A man has been jailed for more than 3 years after moving his neighbour's dead body to set up a cannabis factory in his home.