May 21 (UPI) -- North Korea test-fired a ballistic missile Sunday, one week after the communist nation also launched a rocket into the sea, South Korea's military announced.
"North Korea fired an unidentified ballistic missile in the eastern direction at around 4:59 p.m. from the vicinity of Pukchang in Pyeongannam-do (South Pyeongan Province)," South Korea's Joint Chiefs of Staff said in a statement.