TOKYO, Oct. 31, 2019 (Xinhua) -- Smoke and flames rise from burning Shuri Castle in Naha, the prefectural capital of Okinawa, Japan, Oct. 31, 2019. The main building of a historical castle in Okinawa, designated a World Heritage site, has burned down in a predawn fire, with authorities working to control the blaze that has also engulfed other buildings, local police said Thursday.The fire started shortly before 2:40 a.m. local time at Shuri Castle in Naha, the prefectural capital of Okinawa. more