North Korea fired four projectiles on Wednesday morning toward the Sea of Japan, an official with the South Korean Defense Ministry told CNN.

The projectiles were fired from the central part of North Korea.

Two of the projectiles appeared to have not launched successfully, ceasing to fly after a few seconds, the official said.

One projectile flew 210 kilometers (130 miles) before landing in the sea. Another projectile flew 130 kilometers (80 miles) but it's not known where it landed.