NEWYou can now listen to Fox News articles!
The North American Aerospace Defense Command (NORAD) said on Wednesday that it detected Russian aircraft operating in the Alaskan Air Defense Identification Zone (ADIZ).
NORAD identified the aircraft as two Tu-95s, which are long-range strategic bombers, and two Su-35s, which are advanced fighter jets.
"The Russian military aircraft remained in international airspace and did not enter American or Canadian sovereign airspace. This Russian activity in the Alaskan ADIZ occurs regularly and is not seen as a threat," NORAD said in a statement.
NORAD said in the statement that it responded with an E-3, four F-16s, and four KC-135 tankers to positively identify and intercept in the Alaskan ADIZ.

Sukhoi Su-35S multirole fighter jets of Russian Knights aerobatic team conduct adaptive training for the upcoming 15th China International Aviation and Aerospace Exhibition, or Airshow China 2024, on Nov. 9, 2024. (Zhou Guoqiang/VCG via Getty Images)
NORAD noted that the ADIZ begins where the U.S. and Canada's sovereign airspace ends.
NORAD's announcement comes as Russia is blamed for incursions into NATO allies Estonia and Poland's airspace.
The MiG-31 jets flew together over Estonia, two NATO sources independently told Fox News Digital. The jets flew back and forth for over 12 minutes before Italian F-35s "pushed them out," according to the sources.
"Russia has already violated Estonia’s airspace four times this year, which in itself is unacceptable. But today’s incursion, involving three fighter aircraft entering our airspace, is unprecedentedly brazen," said Estonian Foreign Minister Margus Tsahkna. "Russia’s increasingly extensive testing of boundaries and growing aggressiveness must be met with a swift increase in political and economic pressure."
NATO allies met on Tuesday following the incursion at the request of Estonia, which triggered Article 4.
NATO Secretary General Mark Rutte said on behalf of member states that Russia's actions were "escalatory."
"We do not want to see a continuation of this dangerous pattern by Russia, intentional or not," Rutte said. "But we stand ready and willing to continue to defend every inch of ally territory."
This is a developing story. Please check back for updates.
Fox News Digital's Morgan Phillips contributed to this report.
Rachel Wolf is a breaking news writer for Fox News Digital and FOX Business.