Police are looking into a number of witness reports of drones being flown Thursday night near the Imperial Palace and other locations in Tokyo linked to the royal family, investigative sources said.The Metropolitan Police Department began receiving reports from riot police in central Tokyo after 8 p.m. of drones flying near the Imperial Palace and the Akasaka Estate, currently home to Emperor Naruhito, who ascended the throne Wednesday, as well as a few other members of the imperial family, the sources said.The flying of drones is banned in downtown Tokyo. Witnesses said the drones flew abo…READ FULL ARTICLE