South Korea has suspended a maritime “non-hostility zone” where the two Koreas formerly agreed not to hold drills, after days of tensions with North Korea over artillery fire around the Yellow Sea.

Seoul’s announcement that it will resume military exercises in the maritime buffer zone marks its latest rollback of provisions under the 2018 Comprehensive Military Agreement (CMA), which the DPRK already scrapped in full in late November.

“[North Korea] fired artillery in the West Sea for the past three days in a row,” effectively “neutralizing” the ceasefire “non-hostility zones,” Lee Sung-jun, spokesperson for South Korea’s Joint Chiefs of Staff