Foxconn Technology Group said on Sunday that production at a plant in Henan province was not halted by a strike that had occurred two days before and involved about 400 workers.

Liu Kun, spokesman for Foxconn, denied a report issued by the New York-based China Labor Watch that said between 3,000 and 4,000 workers at the Foxconn Zhengzhou factory went on strike on Friday in response to an increase in quality control demands. Liu said the dispute between workers and quality inspectors involved more than 400 people and ended within two hours.

"This went beyond anything I had expected," he said. "I wouldn't encourage workers to resort to these kinds of extreme measures to claim their rights."