China Labor Watch suggests that while the schools responsible for the students are primarily to blame, "Foxconn is also culpable for not confirming the ages of their workers." The discovery follows on from a report the watchdog published on Monday, indicating that Foxconn hired "a small number" of students over the summer. The report also confirmed that the electronics manufacturer has begun to send the students in question back to their schools.

The latest revelation comes after recent reports that Chinese students were pulled from schools in order to work on the iPhone 5 as part of a "forced" internship program. Foxconn later denied that students were being pressured into the program, saying that schools worked with the local government in order to select students under teacher supervision. Still, there’s a growing unrest among workers in Foxconn factories over general conditions as well as the brutality of the security guards.