The Japanese Defense Ministry is examining a video that purports to show a Maritime Self-Defense Force vessel in port, suspecting it may have been taken by an unauthorized drone, sources familiar with the matter said Wednesday.

The video, which was posted on a Chinese social media platform, stirred controversy earlier this year as it appears to provide a clear shot from above of the deck of the helicopter carrier Izumo. Defense Minister Minoru Kihara told reporters last month the ministry would investigate whether the imagery was fabricated or authentic.

Screengrab from the Chinese social media platform Weibo shows a video purportedly taken by a drone of a Japanese Maritime Self-Defense Force carrier in port. (Kyodo)

According to the sources, the ensuing analysis led the ministry to believe the video was possibly taken from a drone that flew without permission above the vessel while it was anchored at an MSDF base in Yokosuka, south of Tokyo.

The video also showed what is believed to be buildings and facilities of the port in the city of Kanagawa Prefecture, which also hosts a U.S. naval base.

In Beijing on Thursday, Chinese Foreign Ministry spokesman Lin Jian said that he was unaware of the video's origin.

Unauthorized drone flights are prohibited near the MSDF's base in Yokosuka.


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