SEOUL, Korea, Republic Of -- A powerful U.S. B-52 bomber has flown over South Korea in a show of force following North Korea's fourth nuclear test.

The long-range bomber, which is capable of delivering nuclear weapons, could be seen flying Sunday over Osan Air Force Base south of Seoul.

North Korea will likely see the landing as a threat.

Any hint of American nuclear power enrages Pyongyang, which links its own pursuit of atomic weapons to what it sees as past nuclear-backed moves by the United States to topple its authoritarian government.

After North Korea's third nuclear test in 2013, the U.S. also sent its most powerful warplanes to drills with South Korea.