While workers building a third set of locks for the Panama Canal were back on the job Thursday after the European-led GUPC consortium ended a 15-day shutdown, the waterway’s administrator said the parties have yet to resolve the dispute that led to the suspension.

“We cannot say that that accord will happen,” canal administrator Jorge Quijano told the media late Thursday.

The ACP said Wednesday night that the consortium had agreed to resume work, although it added that some issues remained unresolved and were preventing the two sides from putting a definitive end to a dispute that dates back to Dec. 30.

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