Nuclear security

North Korea declares 'we will NEVER stop nuclear and missile tests as long as America continues its hostile acts of aggression'

A North Korean government official has vowed the country will 'never stop' nuclear and missile tests for as long as the US continues to show 'hostile acts' of aggression. 

'The nuclear test is an important part of our continued efforts to strengthen our nuclear forces,' said Sok Chol Won, director of the North's Institute of Human Rights at the Academy of Social Sciences, in an interview with CNN on Wednesday.

'As long as America continues its hostile acts of aggression, we will never stop nuclear and missile tests,' he warned.  

His comments come after North Korea conducted its biggest ever live-fire artillery exercise to mark the 85th anniversary of its military's creation on Tuesday.