Four people died on Friday when a private jet crashed at a car auction site in southern England. <br /><br /> The victims were the pilot and all three passengers of the aircraft which had been attempting to land at Blackbushe Airport in Hampshire.<br /><br /> Flying in from Milan, Italy, it was reportedly Saudi-registered. <br /><br /> No-one on the ground was hurt.<br /><br /> An investigation is underway into the cause of the crash.