The Chinese said the U.S. bomber was flying in Chinese airspace. Both American officials said the bomber was flying in international airspace and continued on its mission.
The Chinese warning came over the emergency radio frequency known as "guard," according to one official. The incident occurred when the American bomber was flying 70 miles southwest of the South Korean island of Jeju.
The episode occurred amidst rising tensions with North Korea, which tried to launch another ballistic missile Wednesday, but failed.