North Korea test-fired 16 short-range rockets into the sea on Sunday, the South’s military said -- the latest of dozens launched in recent weeks in apparent protest at joint drills between Seoul and Washington

North Korea test-fired 16 short-range rockets into the sea on Sunday, the South's military said -- the latest of dozens launched in recent weeks in apparent protest at joint drills between Seoul and Washington.
  
The launches took place between about 1:00 am (1600 GMT Saturday) and 2:30 am off the North's east coast, a South Korean defence ministry spokesman told AFP.
  
"They were rockets with a range of about 60 kilometres (37 miles)," he said, adding the projectiles were old versions of Russian-made, unguided Frog rockets.   It is not unusual for Pyongyang to carry out such tests but there has been a spate of them in recent weeks. About 70 short-range rockets have been fired into the sea this month, including 30 on Saturday.