A new report says North Korea has begun a major upgrade of its launch system . It says the upgrade will allow for larger rockets to be launched . North Korea last fired an Unha-3 in December 2012 , in a controversial launch that successfully put a satellite in orbit . It says it is continuing testing on a road - mobile intercontinental ballistic missile . Analysts expect China to continue with its rockets program despite international opposition .
A new report says North Korea has begun a major upgrade of its launch system . It says the upgrade will allow for larger rockets to be launched . It says it is continuing testing on a road - mobile intercontinental ballistic missile . Analysts expect China to continue with its rockets program despite international opposition .