REUTERS - A Russian fighter jet carried out an "unsafe and unprofessional" intercept of a U.S. spy plane over the Black Sea and came within 10 feet (3.05 meters) of the American aircraft, two U.S. defense officials said on Wednesday.
It lasted about 19 minutes and involved a Russian Sukhoi Su-27 fighter and a U.S. Navy P-8 surveillance plane flying a regular patrol, said one official, speaking on condition of anonymity.
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"They're up there for 12 hours and there are lots of interactions. But only one of the incidents was what the pilot determined was unsafe," said another official, who was not authorized to speak publicly.
Officials were talking with the pilot and reviewing the incident to determine whether it would be included in an annual meeting of U.S. and Russian officials about more serious intercepts, the official added.
The Russian defense ministry said it had sent Su-27s on Wednesday to intercept a U.S. aircraft approaching its border over the Black Sea because the American planes had turned off their transponders, which are needed for identification.
There have been a number of similar incidents involving Russia and the United States this year. In April, two Russian warplanes flew simulated attack passes near a U.S. guided missile destroyer in the Baltic Sea.
The events are reminiscent of the Cold War, when a series of close calls led to a bilateral agreement aimed at avoiding dangerous interactions at sea that was signed in 1972.
In July, NATO leaders agreed to deploy military forces to the Baltic states and eastern Poland for the first time and increase air and sea patrols to reassure allies who were once part of the Soviet bloc, following Russia's seizure of Crimea from Ukraine.
The 28-nation Western defense alliance decided to move four battalions totaling 3,000 to 4,000 troops into northeastern Europe on a rotating basis to display its readiness to defend eastern members against Russia.