NAHA, Japan - The main buildings of a castle at a World Heritage site in Okinawa, regarded as a symbol of the southern Japanese prefecture, burned to the ground in a predawn fire Thursday, with the blaze finally suppressed hours later.The fire started just before 2:40 a.m. at Shuri Castle, one of Okinawa's major tourist spots, in the prefectural capital Naha, and was extinguished at around 1:30 p.m. after destroying seven wooden buildings occupying a total of 4,800 square meters.There were no immediate reports of injuries, but more than 30 nearby residents were temporarily evacuated, local …READ FULL ARTICLE