The 18-year-old Australian girl, who was not named for security reasons, was taken from the motel as she took off to play with her friends and was later pronounced dead after being hit by another vehicle. As police were attempting to find the girl they encountered two teenage boys sitting behind a yellow Cadillac at the time of the crash which happened on Saturday afternoon at the airport in New Jersey. 'This is a terrible accident at a really poor place,' said Detective Sgt Nick Healey of the New Jersey Police Department. 'The passengers are the same age. They did not make an attempt to stop themselves or stop each other. A woman was left in the airport after being hit by her own vehicle. The four teenagers, who were aged between 15-17, are being held on $100,000 bail until arraignment in June. Officers said they discovered the sedan had two occupants after they came across the young girl at the scene because they could not determine the ages at which that particular vehicle belonged to.