Bloomberg is reporting that Foxconn has once again started hiring for their plant in Zhengzhou, the plant where Apple's iPhone is produced. Workers have apparently been recruited for the last month after Apple requested an increase in capacity at the plant. The workers will be constructing both existing models and new ones.
The Wall Street Journal said that Foxconn has been hiring about 10,000 people per week since the end of March. Foxconn noted that Zhengzhou currently employs around 250,000-300,000 people, though they wouldn't say how many have been added during this most recent hiring binge.
If Apple has asked for increased capacity, you can imagine that Apple is working on ramping up production for the latest iPhone. Apple needs to get the iPhone released fairly soon to compete with the next-gen HTC One and Samsung Galaxy S4.