(From Jiji Press)
An unidentified small drone with low levels of radioactive cesium was found on the roof of the Japanese prime minister’s office in Tokyo on Wednesday, police said.
A small camera and what appeared to be a plastic container for liquid were attached to the 50-centimeter-square drone, which had four propellers, according to the Metropolitan Police Department. The drone also carried what appeared to be two smoke canisters, but they were not explosive devices, the police said.
Chief Cabinet Secretary Yoshihide Suga said following the incident that the government should create regulations as soon as possible to prevent such unmanned aerial vehicles from being used for terror attacks. At present, Japan regards drones as toys and allows them to freely fly less than 250 meters above ground except for areas near airports.
Other Japanese reports noted that sophisticated toy drones are available widely in Japanese stores. Toy-based technology was used by Japan’s Red Army faction in the 1980s to launch home-made rockets at the U.S. Embassy in Tokyo. Japan’s Aum religious cult also used toy and hobby parts to construct delivery devices for its March 1995 sarin gas attack on the Tokyo subway system.