The North Korean government has test-fired four short-range missiles, according to South Korean military officials.
The missiles were fired into the sea from Dongchang-ri, on the west coast of the country, a statement by the Joint Chiefs of Staff said.
Pyongyang regularly conducts missile tests when the south and the US are engaged in military drills, as they are currently.
A JCS spokesman said Friday's test "appeared to have been supervised by Kim Jong-Un", AFP reports.