exciten th i loveers esltoe us.> ce d thnderaret.alnm aowizer oos . >>> an investigation is under way after eight harnett county inmates are hospitalized after over dosing on illegal drugs. candace sweat joins us live. puzzling situation here. what happened? >>reporter: we now know just about an hour ago, we got word that five of the eight inmates have been released from the hospital and they were brought three of those inmates still remain in the hospital but of course, the big question everyone has is how did this happen? now, what we know right now is that the inmates began getting sick friday afternoon and several were found unresponsive in their dorms. by saturday, eight inmates had been sent out to area hospitals due to suspected use of the drug k-two. it is said to be a synthetic marijuana but at this point, we don't know how the inmates were able to get their hands on this drug. a spokesperson with the state department of public safety did tell me there is an internal investigation and an investigation by the lillington police department, but at this point, no one has been cha