A Russian SU-27 Flanker fighter jet flew within 10 feet of a U.S. Navy P-8A Poseidon surveillance aircraft Wednesday over the Black Sea, the Pentagon said, calling it an unsafe maneuver.
Navy Capt. Jeff Davis, a Pentagon spokesman, said the Russian SU-27 fighter made the unsafe intercept near the U.S. Navy P-8A aircraft that was conducting routine operations in international airspace, The Associated Press reported.
Russian Defense Ministry Spokesman Maj. Gen. Igor Konashenkov said in a statement Wednesday that the Poseidon aircraft did not have its transponders turned on, and that it approached Russia's southern border twice.
He said Russian jets were deployed to intercept the incoming aircraft and "Russian pilots acted in strict compliance with international flight rules."
A senior U.S. defense official said the Navy Poseidon had its transponder turned on during the entire flight. The official was not authorized to discuss the matter publicly so spoke on condition of anonymity.
According to the U.S., the Russian jet conducted four intercepts of the Poseidon, and the one that was considered unsafe lasted about 19 minutes.
Davis said that U.S. Navy aircraft and ships routinely interact with Russian units in the area and most interactions are safe and professional.
"However, we have concerns when there is an unsafe maneuver like this," he said. "These actions have the potential to unnecessarily escalate tensions, and could result in a miscalculation or accident. "
Russian jets have occasionally flown close to other U.S. aircraft and Navy ships in the region. In one more dramatic incident earlier this year, Russian jets buzzed over the USS Donald Cook in the Baltic Sea, coming within 30 feet of the warship.