The JCS said in a short message without mention of any further detail of the launch.
The DPRK has said it conducted six missile tests in January, including a hypersonic missile on Jan 5 and Jan 11 each, two railway-borne short-range ballistic missiles on Jan 14, two tactical guided missiles on Jan 17, a long-range cruise missile on Tuesday and a surface-to-surface tactical guided missile on Thursday.
READ MORE: DPRK fires railway-borne missile in latest launch