Eight more P&O Ferries crew have tested positive for drugs.
Staff from the 48,000-gt cross-Channel Spirit of Britain (built 2011) had given urine samples during a check on Monday.
A total of 106 crew were tested. The eight have been suspended pending further analysis of the samples.
None was an officer, a spokesman for P&O Ferries told Kent Online.
In December, 13 crew from the 30,600–gt Pride
