Seoul: North Korea fired an unidentified projectile off the ‌country's west ⁠coast ⁠on Tuesday, South Korea's Joint Chiefs of Staff said in a statement.If confirmed ​as a missile launch, it would be the first since April ​19, when North ⁠Korea test-fired ‌several short-range ballistic missiles, ​which ​it said were equipped ⁠with cluster bombs.In early April, Pyongyang also ​said it tested a new cluster-bomb ​warhead on a ballistic missile and an electromagnetic weapon, in a move that analysts said was part of efforts to ‌showcase the North's capacity to fight a modern ​war.North Korean leader ⁠Kim Jong Un said in March that his country's status as a nuclear-armed state was irreversible and that expanding a "self-defensive nuclear deterrent" was essential to national security.