A manhunt is underway for a thug who stabbed two immigration officials who were taking him to an airport. The 28-year-old man, who police say is a Tongan National, was being transported to the hub - where it is understood he was supposed to be sent on a flight out of Australia - when he assaulted the employees. The victims; a 54-year-old man and a 36-year-old man, were dashed to hospital. The horror happened in James Ruse Drive in Clyde, Sydney, at around 3.40am local time (6.40pm Wednesday UK