The defense ministry said in a statement that it had to scramble the Su-27 to the area over the Baltic Sea on Tuesday morning after Russian radars spotted an aircraft flying along the border. The ministry said the Russian jet identified it as a US B-52 bomber and escorted it until it flew further away from the border.
The defense ministry did not specify where exactly the intercept happened.
In a separate incident, a Russian MiG-31 was dispatched early today afternoon to intercept Norwegian maritime surveillance aircraft flying over the Barents Sea near the Russian border, the Russian defense ministry said.
Capt Joe Alonso, a spokesman for US European Command in Stuttgart, Germany, said he could not confirm the report, but that the military was aware of it and looking into it.