Read more in Daily Special: China-N.Korea standoff continues over seized fishing boat

The Democratic People's Republic of Korea (DPRK) fired another short-range missile between 4 pm and 5 pm local time after launching a missile on Monday morning, Yonhap News Agency reported.

"North Korea fired one KN-02 short-range missile between 11 am and 12 am and a second one between 4 p.m. and 5 p.m. on Monday. The second missile is the same type as the KN-02 short-range missile launched on Monday morning," Yonhap quoted Seoul military officials as reporting.

DPRK has already fired six short-range missiles into a same water since last Saturday.

South Korea's presidential office urged DPRK to stop aggravating tensions on the Korean Peninsular after DPRK launched the fifth missile on the third day.

DPRK said Monday that the country's missiles launch is only part of normal military training for self-defense purpose, its official news agency KCNA reported.