Russia scrambled a MiG-31 fighter jet to accompany a U.S. military plane over the Barents sea on Friday, RIA news agency reported citing a Russian navy statement. Russian military said the U.S. plane was identified as a P-8A Poseidon aircraft and the Russian fighter jet was returned to its base as soon as the U.S. plane made a U-turn and pulled away from the Russian border, according to RIA.