Bangladesh, Nov. 3 -- Tokyo - The fire that destroyed Shuri Castle, a UNESCO World Heritage site in Japan's southernmost prefecture of Okinawa, is likely to have started from the main hall, police investigators said Sunday.

The fire started shortly before 2:40 a.m. local time last Thursday at the historical castle in Naha, the prefectural capital of Okinawa. It engulfed seven wooden buildings, covering a total of more than 4,000 square meters, before it was extinguished around 1:30 p.m. local time on Thursday.

Police personnel and members of the fire department began an on-site investigation from Friday. The focus of their investigation is on the main hall where police suspect the blaze started to determine what caused the fire and how ...