In Tokyo, a scare involving a radioactive drone.

Details from Tokyo and FOX News Radio’s Alastair Wanklyn:

The drone quadcopter found on the roof of the Japanese prime minister’s office — it had a camera, a bottle with liquid and a label warning it was radioactive.

Tests found it was, slightly.

Prime Minister Shinzo Abe not in the building at the time, but the government here calling for…¬†better security.

There’s no word if the drone was an attack or a stunt by activists, such as those who say radioactive fallout from the Fukushima disaster shows nuclear power is not worth the risk.

In Tokyo, Alastair Wanklyn, FOX News Radio.