The Democratic People's Republic of Korea (DPRK) launched on Saturday three short-range missiles into the Sea of Japan, Yonhap News Agency reported, citing the Republic of Korea's defense ministry on May 18, 2013. This file photo taken on Nov 23, 2012 shows the Sohae Space Center located in Cholsan County, North Phyongan Province, DPRK. [Photo/Xinhua]

SEOUL - The Democratic People's Republic of Korea (DPRK) on Saturday launched three short-range guided missiles into the Sea of Japan, Yonhap News Agency reported, citing the Republic of Korea's defense ministry.

It is reported that the defense ministry detected two missiles launched in the morning and the last one was in the afternoon.

The defense ministry said the launching might be a training or a test launch, according to their observation, and that South Korea is keeping in a high level of readiness to any threat.