North Korea has blasted the United States for rerouting an aircraft carrier strike group to waters off the Korean Peninsula amid surging tensions, saying it is "ready to react to any mode of war."

The state-run Korean Central News Agency quoted a Foreign Ministry spokesman as saying Monday that the dispatch of the USS Carl Vinson-led carrier strike group showed that "the U.S. reckless moves for invading the DPRK have reached a serious phase of its scenario."

DPRK is the acronym for the North's formal name, the Democratic People's Republic of Korea.