The Russian military said it scrambled a fighter jet on Tuesday to intercept and escort a U.S. strategic bomber flying over the Baltic alongside the Russian border.

Russia’s Defence Ministry said Russian radars spotted an aircraft flying along the border and a Su-27 fighter took off to intercept it. It said the Russian pilot identified the plane as a U.S. B-52 bomber and escorted it at a safe distance until it flew further away from the Russian border.

Routine mission

U.S. Lt. Col. David Faggard, a spokesman for U.S. Forces Europe, said the B-52 was conducting a routine mission in international airspace over the Baltic when it was intercepted by the Russian fighter. Such intercepts happen routinely, Lt. Col. Faggard said.

The bomber, normally based in Barksdale, Louisiana, is currently stationed at RAF Fairford in Britain in support of NATO exercises.

The B-52 had its transponders on and would have been identifiable to air traffic controllers at the time of the encounter, Lt. Col. Faggard said.

In a separate incident, a Russian MiG-31 fighter jet was dispatched Tuesday to intercept a Norwegian maritime surveillance aircraft flying over the Barents Sea near the Russian border, the Russian Defence Ministry said. Both Russia and NATO routinely scramble their fighters to intercept each other’s planes flying over international waters. In September, a Russian fighter jet flew within 10 feet of a U.S. Navy surveillance aircraft, in what American officials called an unsafe intercept over the Black Sea.