There is more strike action in the public sector in Wallis and Futuna.
The latest agency to be hit is the Social Security Service, joining action by senior public servants and firefighters.
According to the public broadcaster, staff alleged that they had been discriminated in being given just a two-percent bonus at the end of last year.
They said they were being treated unfairly because the agency's director was given an additional four percent on top of the basic four percent granted to him.
Talks to resolve the dispute have been unsuccessful.
A board meeting is due to be held which might set new terms for bonuses.