A US Navy reconnaissance aircraft flying in international airspace over the Black Sea was intercepted by a Russian fighter jet in an unsafe and unprofessional manner, according to American defence officials.
The US crew reported turbulence following that initial interaction in which the direct pass occurred.
The SU-27 then made a second pass of the US plane and applied its afterburner while conducting a banking manoeuvre, which is believed to have caused a vibration that was experienced by the American crew.
"This interaction was determined to be unsafe due to the SU-27 conducting a high speed pass directly in front of the mission aircraft, which put our pilots and crew at risk," a statement from the US Navy said.
"The intercepting SU-27 made an additional pass, closing with the EP-3 and applying its afterburner while conducting a banking turn away. The crew of the EP-3 reported turbulence following the first interaction, and vibrations from the second."
The plane had its transponder on for the duration of the mission but there was no communication established or attempted between the Russian and US aircraft, CNN quoted Pahon as saying.
The last reported unsafe intercept of a US Navy aircraft by a Russian jet occurred in January when a Russian Su-27 jet flew within five feet of a US Navy EP-3, forcing the Navy plane to fly through its jet wash.
The US Navy deemed that intercept unsafe and unprofessional.
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