Police believe a fire that destroyed Shuri Castle, a symbol of Okinawa located at a World Heritage site, was not likely to have been caused by arson, investigators said Friday.In analyzing the evidence, including security camera footage at the gutted castle, police have found no traces of intrusion into the castle ahead of the fire breaking out, they said.Okinawa Churashima Foundation, which manages the castle, told a press conference on Friday that there was nothing unusual an hour before the fire alarm sounded.A security guard conducted a routine patrol inside the Seiden main building of …READ FULL ARTICLE