The Chinese navy warned a U.S. surveillance plane flying over artificial islands that Beijing is creating in the disputed South China Sea to leave the area eight times, according to CNN, which was on board the flight on Wednesday.
At one stage, after the American pilots responded by saying the plane was flying through international airspace, a Chinese radio operator said with exasperation: "This is the Chinese navy. ... You go!"
The P8-A Poseidon, the U.S. military's most advanced surveillance aircraft, flew at 15,000 feet (4,500 meters) at its lowest point, CNN said.
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