South Korea conducted a live-fire exercise with a Chunmoo multiple launch rocket system (MLRS), designed to counter North Korea's long-range artillery, on Thursday evening, a move which one expert says is likely a warning signal to Pyongyang amid rising security tensions of the peninsula.

Seoul’s live-fire exercise takes place against a backdrop of heightened tensions, as North Korea recently hinted at a constitutional change to officially label South Korea as the “absolute enemy,” after blowing up border roads linking to the South on Tuesday.