The statement comes amid escalating tensions on the Korean Peninsula and after the US and South Korea demonstrated a show of force in the region.
The US and South Korea held a joint flight operation in the region, involving four US warplanes, two nuclear-capable B-1B strategic bombers from Guam and two Japanese-based Marine Corps F-35B jets, as well as South Korean F-15K fighter jets, South Korean news agency Yonhap reported on Thursday, citing South Korean defense officials.The KC-135 Stratotanker aerial refueling plane also took part in the operation.
"They conducted bombing drills over the Pilseung range in the eastern province of Gangwon," the agency specified.
The military exercises come two days after North Korea launched an intermediate-range ballistic missile from a site near Pyongyang, and issued a warning that the tests are not ending anytime soon.
In a separate comment on the issue, China's foreign ministry warned that the situation on the Korean Peninsula is serious and not a computer game, Reuters reported.
The announcement by Ministry spokeswoman Hua Chunying was made during her regular briefing on Thursday when asked about the possibility of new sanctions against North Korea, pushed by Japan and the US.