The flight was a Khi-Quetta-Zahedan route. The flight did indeed land at Quetta airport, but the passenger (only 1 passenger was due to disembark at Quetta), was sleeping and did not get his lazy a** off the plane. And then went to Zahedan. At Zahedan, the passenger informed the PIA officials and then was taken back to Quetta on another flight.
These media fools don't really have a proper understanding to first check the full details of the story then make a ticker.