The officials spoke on condition of anonymity because they were not authorized to discuss the previous incidents publicly.
Kirby said the Aug. 19 maneuvering by the Chinese jet posed a risk to the safety of the U.S. air crew, was “inconsistent with customary international law,” and complicates efforts to improve military-to-military relations, which are often strained.
Kirby said the Chinese jet made several close passes by the Navy P-8 Poseidon plane, coming within 30 feet of it at one point. He said the Chinese jet did a “barrel roll” maneuver over the top of the Poseidon at one point and also passed across the nose of the Navy plane, exposing the belly of the fighter in a way apparently designed to show that it was armed.
Kirby said it happened about 135 miles east of China’s Hainan Island. In 2001 a Chinese jet collided with a U.S. Navy surveillance aircraft off Hainan Island, killing the Chinese pilot and forcing the Navy plane to make an emergency landing on the island. Washington severed military relations with China after that episode.
The Navy’s P-8 Poseidon aircraft are designed for long-range missions, including intelligence collection and reconnaissance.