The director and human resources chief at the Goodyear plant in Amiens walked out of the factory minutes after two police officers had entered the building while a dozen others waited outside.
The plant, which Goodyear has tried to sell or close for five years, has become an emblem of France's labour tensions. The seizure of the two managers appeared to resurrect the once-common practice of "boss-napping."
The plant's workers, having failed to get guarantees to keep the factory open, are demanding larger severance payments.
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