Ferry workers in the Northern Isles have voted to strike in a row over jobs.
Members of the National Union of Rail, Maritime and Transport Workers (RMT) voted nine to one for action.
The union is involved in a dispute with ferry operators Serco, saying that jobs are under threat from a programme of cuts.
Staff involved in the row work on ferries between Aberdeen and Orkney and Shetland.
RMT general secretary Bob Crow said: "Serco are fully aware that we will not accept attacks on our members' jobs and conditions and what is now an all-out attempt to bulldoze through redundancies, cuts to core staffing numbers and the casualisation of these skilled shipping grades.
"This ballot result, in the face of this deliberately provocative action, shows that our members are prepared to fight for their future livelihoods. The result will now be considered by the RMT executive."
Steve Todd, RMT national secretary, said: "This overwhelming result shows that RMT members will not stand back while jobs are sacrificed in the middle of this botched privatisation stitch-up. Staff on Northern Isles routes are threatened with the sack in the dash to maximise Serco's profits and that is totally unacceptable.
"The public will understand that it is our members' jobs today and will be cuts to services and increases to fares tomorrow.
"Serco should withdraw this threat immediately and take up the offer of resuming talks through the proper consultation procedure as a way of resolving this dispute."