BEIJING , China ( CNN ) -- A Chinese factory that makes iPhones said Wednesday that it has suspended several staffers after an employee committed suicide , apparently under duress when a prototype went missing . Foxconn manufactures the popular iPhone for U.S.-based Apple in China . Sun Danyong , 25 , jumped off the 12th floor of the Foxconn Science and Technology Group in the southern city of Shenzhen last week . The recent engineering school graduate sent 16 model phones to phone manufacturer , Apple , but only 15 were received , said the state-run newspaper New Beijing Post . Because of the missing phone , Sun was questioned by company officials and -- according to posts on online forums by his friends -- detained , searched and beaten . Apple China said it was awaiting the results of an investigation into Sun 's death . `` We require that our suppliers treat all workers with dignity and respect , '' Apple said in a statement . Foxconn also released a statement outlining several steps it has taken following the suicide , including counseling for its employees . `` I can honestly say Foxconn has not given anyone permission to do anything unlawful , '' executive Li Jing Ming said . Employees connected to the incident were either fired or suspended without pay , the statement said . `` Regarding the loss of such a young life , the company and I express our deepest sorrow and regret and are apologetic to his family as we were not able to properly take care of him , '' Li said . The company said it will support Sun 's family with funeral arrangements and other matters .
Sun Danyong , 25 , jumped off the 12th floor of building in southern city of Shenzhen . Recent graduate sent 16 model phones to Apple , but only 15 were received . Apple China said it was awaiting the results of an investigation .