North Korea fired two short-range ballistic missiles into the East Sea earlier this Wednesday morning.
South Korea's Joint Chiefs of Staff said the projectiles, believed to be SCUD missiles with a range of 500 kilometers, were launched at around 4 a.m. Korea time from the North's western Hwanghae-do province without prior warning.
The missiles fell in international waters.
Wednesday's launch marks the 13th launch of projectiles by Pyongyang this year.
North Korea had fired two short-range projectiles a week ago just one day ahead of Chinese President Xi Jinping's visit to South Korea.
This latest launch also comes only days after Pyongyang claimed Seoul must shift its confrontational policy toward the North to one that would lead to a reconciliation between the two Koreas.
A South Korean military official who wished to remain anonymous said the latest missile launch could be seen as an armed demonstration by North Korea to show that it can fire missiles anywhere, at any time.
The South Korean military has heightened its vigilance and beefed up its military readiness against any additional provocations by the North.
Hwang Sung-hee, Arirang News.