This photo released by North Korea's official Korean Central News Agency, Jan. 6, shows what the North claims to be a new hypersonic missile launched the previous day. Yonhap

North Korea said Thursday that it successfully conducted a test-firing of what it called a "hypersonic" missile a day earlier, three months after it first showcased the new weapon.

On Wednesday, South Korea's military said the North fired what appeared to be a ballistic missile toward the East Sea from the northern province of Jagang.

The missile made a "120 km lateral movement" from the initial launch azimuth and "precisely hit a set target 700 km away," the Korean Central News Agency (KCNA) said. It did not disclose the speed of the projectile.

North Korean leader Kim Jong-un did not attend the missile test.

"The test launch clearly demonstrated the control and stability of the hypersonic gliding warhead which combined the multi-stage gliding jump flight and the strong lateral movement," the KCNA said.