Bus workers in the Isle of Man are on strike today, for the first time in 20 years.
Inspectors and depot supervisors have withdrawn their labour in a dispute over pay and conditions.
The strike is for one day, but the union Prospect is warning it will be followed by further industrial action, unless agreement can be reached between the group and management.
The issue has escalated since the union was told depot supervisor posts will be made redundant, through a plan to close out of town depots, in the next few years.
The union says the strike was due to coincide with the launch of a newly liveried bus fleet costing almost £2 million pounds, but launch - scheduled for this morning - has been postponed.
Prospect negotiations officer Angela Moffatt says today's strike is a last resort and efforts have been made to try and avoid such action for well over a year.
The union expects to give notification of further strike action within the next few weeks, if no agreement can be reached.