More and more American and Canadian fighter jets are scrambling and intercepting Russian bombers flying off the Alaskan coast, exacerbating tensions between the former Cold War foes.

There have been 16 such intercepts since July, Pacific Air Forces Commander Gen. Howie Chandler told the Anchorage Daily News on March 27. That compares with just one in 2005, and none in the previous 10 years, Chandler said.

The most recent incident occurred March 25, when two F-15s from Elmendorf Air Force Base, Alaska, scrambled to intercept two Russian Tu-95 Bear heavy bombers.