Corrections staff are going on strike.
98 percent of association members rejected the latest collective agreement offer - with 97 percent voting in favour of industrial action.
Members are seeking an offer higher than inflation's 6 percent - and greater staffing numbers.
Corrections Association President Floyd du Plessis told Heather du Plessis-Allan dates for strike action will be decided next week.
He says all they want is Corrections to come back with a reasonable offer so action can be avoided.
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