US military detects 'unprecedented levels' of North Korean submarine activity and evidence of nuclea

[Suff Shikan]

US military detects 'unprecedented levels' of North Korean submarine activity and evidence of nuclear 'ejection test'
The developments come amid heightened tensions between the United States and North Korea

http://www.independent.co.uk/news/w...bm-inter-continental-balllistic-a7871501.html