Police in Western Australia have been investigating a large 'SOS' sign discovered in a remote area. The distress signal, which was spotted by a helicopter pilot, prompted an extensive search of the region over fears that someone may have become stranded out in the middle of nowhere. The letters 'SOS' had been spelled out by arranging dozens of small rocks on the ground and appeared to have been left by someone who was in genuine need of assistance. Located around 300 miles from the city of Broome, the area is so difficult to get to that search and rescue teams were only able to reach the site using a helicopter. They eventually found the remains of a campfire but no sign that anyone was still there, suggesting that the 'SOS' may have actually been set up years ago. What ultimately became of the person