Seoul

North Korean leader Kim Jong-Un has warned of a "very grave" situation on the Korean peninsula, quoted by North Korea's official KCNA agency. 

Earlier this week South and North Korea exchanged artillery fire across the sea  border and Kim threatened a new nuclear test. 

North Korea fired 30 short-range missiles on Saturday.

According to the General staff of the Democratic People's Republic of Korea's army, the missiles flew about 30 km before falling into the Sea of Japan near the Korean Peninsula, ITAR-TASS has reported.