小型無人機落日本首相官邸屋頂

Japanese authorities have launched an investigation after discovering a small drone on the roof of Prime Minister Shinzo Abe's office.

日本當局發現一架小型無人機降落在安倍晉三首相官邸的屋頂上，隨後對此展開調查。

The four-propeller drone measured about 50 centimeters in diameter and was carrying a camera, a plastic bottle, and a flare-like device, according to national broadcaster NHK.

日本NHK廣播公司說，這架四旋翼無人機長約50釐米，裝有一架照相機、一隻塑料瓶以及一個類似照明燈的裝置。

Several media outlets also reported the drone was decorated with a radioactive symbol, and the Kyodo news agency reported a small amount of radiation was measured on the craft.

多家媒體還報道說無人機裝飾放射性標誌，而共同社報道飛行器上檢測到微量輻射。

Television footage showed dozens of police officers hovering around the drone, which was covered by a blue tarp.

電視畫面顯示，數十名警察在蓋着藍色篷布覆的無人機周圍徘徊。

It is not clear who sent the drone or what their motive may have been. There have been no reported injuries. Prime Minister Shinzo Abe was away from his office at the time, attending a conference in Indonesia.

目前還不清楚這架無人機的操縱者，也不清楚操縱者的動機。沒有關於有人受傷的報道。安倍首相當時正在印尼出席一個會議，因此不在首相官邸。