Pyongyang/Seoul, Aug 11 (TIWN) North Korea on Sunday said the country's leader Kim Jong-un supervised the test-firing of a "new weapon" in the launch of two projectiles the previous day and expressed "great satisfaction" with the result.

They flew around 400 km at a maximum altitude of 48 km, according to South Korea's Joint Chiefs of Staff.  The launch came shortly after US President Donald Trump said he had received another "very beautiful" letter from Kim. 

After receiving a report on a new weapon system, Kim "gave an instruction to test it immediately" and "looked round the new weapon at the launching site", Pyongyang's Korean Central News Agency (KCNA) said in its report on Sunday.     

It did not give further details on what type of weapon it was, only to state that the analysis of the test-fire result "proved that the new weapon system's advantageous and powerful demand of the design was perfectly met".  KCNA added that the new weapon was "developed to suit the terrain condition" and comes with a character "different from the existing weapon systems".