North Korea has fired two more short-range rockets off its east coast, the third such test in less than a week.
News of the launch came from South Korea, which said the projectiles landed harmlessly in the East Sea on Wednesday.
South Korean officials said the projectiles were fired from the city of Wonsan and had a range of 180 kilometers.
They are believed to be 300-millimeter KN-09 short-range rockets fired by a multiple rocket launcher.
Pyongyang test-fired two short-range missiles Sunday and launched two other projectiles Thursday in the same area.
The launches come ahead of a state visit to South Korea this week by Chinese President Xi Jinping.
The talks, which begin Thursday, are expected to focus in large part on North Korea's nuclear and missile programs.
Mr. Xi has met twice with South Korean President Park Geun-hye since he took office. He has not met with North Korean leader Kim Jong Un.