After failing PSC inspection
The UK Maritime and Coastguard Agency (MCA) announced that6 foreign flagged ships were under detention in UK ports during October 2014 after failing Port State Control (PSC) inspection.
During October, there were 3 new detentions of foreign flagged vessels in a UK port. 3 vessels remained under detention from previous months and 4 vessels were released during October. A total of 2 vessels remain under detention at the end of October.
Source:UK MCA