If you've been waiting for Apple iPhone 5 devices to become available, you may have to wait a while longer.

In the latest reminder of the harsh working conditions endured by those who make the gadgets the world loves, 3,000-4,000 workers at a plant run by Apple manufacturing partner Foxconn went on strike last week, according to China Labor Watch. Foxconn denied the report, saying that there had merely been two isolated "disputes" and that iPhone production had not been stopped.