Russian military planes detected flying near Alaska yet again, NORAD says

Russian warplanes were spotted flying off the coast of Alaska, the North American Aerospace Defense Command said Tuesday, marking the latest incident involving Russian military activity being tracked by the U.S. military near the state.

The Russian planes did not enter American or Canadian sovereign airspace, NORAD said, adding that the planes were "not seen as a threat." NORAD did not identify the type of Russian aircraft that were detected nor the number of planes.

Although the Russian aircraft remained in international air space, they entered a region beyond U.S. and Canadian sovereign air space called the Air Defense Identification Zone (ADIZ), where aircraft are expected to identify themselves, according to NORAD.