The launch was confirmed by the South Korean military and the Japanese Coast Guard. The projectiles landed in the Sea of Japan, outside Japan’s territorial waters.
The South Korean military said the projectiles were fired from areas in South Pyongan Province in the west of North Korea.
The Japanese Defense Ministry said the projectiles appeared to be some kind of ballistic missiles.
Pyongyang conducts regular tests of its smaller missiles, with the latest reported in early October.