Workers on a ferry operating between southern Scotland and Northern Ireland are under investigation for failing drug and alcohol tests.
Stena Line said that 'a number of employees' on board its Belfast to Cairnryan service failed random testing.
The company confirmed that tests were carried out when controlled drugs went missing from a secure medical room on board the vessel.
The workers have since been suspended, or had their contracts terminated, and police have been informed of the incident.
Stena Line released a statement: