An US helicopter filming the US navy USS Fort Worth (on the foreground of the video) closely followed from the behind by the Chinese army Yancheng frigate .
An US helicopter filming the US navy USS Fort Worth (on the foreground of the video) closely followed from the behind by the Chinese army Yancheng frigate .
An US helicopter filming the US navy USS Fort Worth (on the foreground of the video) closely followed from the behind by the Chinese army Yancheng frigate .
An US helicopter filming the US navy USS Fort Worth (on the foreground of the video) closely followed from the behind by the Chinese army Yancheng frigate .