Correspondents say that it is the fourth such incident since March.
So far there has been no comment about the reported near-miss from China.
Rear Admiral Kirby said that the incident happened on Tuesday when an armed Chinese Su-27 fighter intercepted a US Navy P-8 Poseidon patrol aircraft that was on a routine mission.
“We have registered our strong concerns to the Chinese about the unsafe and unprofessional intercept, which posed a risk to the safety and the well-being of the air crew, and was inconsistent with customary international law,” he said.
He said that the Chinese manoeuvre detracted from efforts to improve American relations with China’s military.
The warplane flew close to the surveillance aircraft three times, he said, flying above, underneath and alongside it. At one point it performed “a barrel roll” in an apparent display of its weapons.
Rear Adm Kirby said that the Chinese manoeuvre was “very, very close, very dangerous”.
Near-misses between aircraft and naval vessels of the US and China are commonplace off the coast of China.
In December China said one of its warships “encountered” a US guided missile cruiser, confirming US reports of a near-collision in the South China Sea.
Shortly before this incident China set up an Air Defence Identification Zone (ADIZ) in the East China Sea, and said that aircraft flying through the zone must follow its rules, including filing flight plans.
The US, Japan and South Korea have rejected China’s zone, and flown undeclared military aircraft through it. The US has called the move a unilateral attempt to change the status quo in the region.
The most serious incident in recent years however took place in 2001, when a Chinese fighter jet collided with a US Navy EP-3 spy plane, killing the Chinese pilot.Source: BBC – US accuses China fighter of reckless mid-air intercept
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