Scores of grain ships sat idle outside Argentina’s ports on Tuesday as the country’s dockers union and port managers’ chamber sparred over a strike that threatened to disrupt key soy exports.

Agricultural powerhouse Argentina is prone to labor disputes such as the walkout called by dockworkers on Thursday.

The union, known by its Spanish acronym SOMU, demands that work shifts be better staffed. No negotiation sessions were set for Tuesday and without a deal between the dockers and their bosses, Suarez said the work stoppage will go on indefinitely.

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