Seoul: North Korea today test-fired ten rockets into the sea, South Korea`s defence ministry said, the latest in a series of launches that have provoked criticism from Seoul and Washington.
The rockets were fired off the North`s east coast and flew about 70 kilometres into the Sea of Japan (East Sea), a ministry spokesman said.
"Following the North`s rocket launch at 6:20 pm, our military has maintained a close watch for possible North Korean provocations," he said.
Yonhap news agency earlier reported that 10 short-range missiles were fired. South Korean troops have increased vigilance following a series of launches of rockets or missiles.
The activity coincides with annual South Korean-US military exercises that started in February and will run until mid-April.
Pyongyang routinely condemns such joint exercises as rehearsals for an invasion, while Seoul and Washington say they are purely defensive.