North Korea warned over rocket launch

At the G20 summit in London, the US President Barack Obama and South Korean president Lee Myung-bak has discussed the issue of rocket launch by North Korea. After the conclusion, the US president said if North Korea launches the rocket, then they will be face some problems. North Korea says the rocket will launch a satellite between 4-8 April, but critics suspect it is a missile test. North Korea has threatened Japan with immediate retaliation if it makes any effort to intercept the rocket. North Korea has also warned that any attempts to impose UN sanctions would be seen as a hostile act.