US President Donald Trump has warned North Korea that its "gotta behave" after Pyongyang's failed missile launch on Sunday.
In a White House press conference Secretary Sean Spicer said the president would not be 'drawing lines in the sand' over tensions in Korea, but will instead take decisive action when necessary.
UK correspondent Adam Gilchrest elaborates on the matter.
There is all this posturing and warning, but at the same time we know that America and China and others are applying diplomatic pressure and we hope that counts....— Adam Gilchrest, 702 UK correspondent
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