It comes a week after it test-fired a mid-long range missile which experts said marked an advancement in the reclusive state's missile programme.
South Korea's Office of Joint Chiefs of Staff said in a statement that the projectile took off Sunday afternoon from a location near Pukchang, an area where Pyongyang attempted to test-launch another missile last month but failed.
The latest missile flew about 500km, the Joint Chiefs of Staff said, according to South Korean news agency Yonhap. Last week's missile travelled about 700km.
