Yes. They are hiding their nukes in underground tunnels. More than 3,000 nukes are similarly hidden in China.

China 'hiding up to 3,000 nuclear warheads in secret tunnels'

http://www.telegraph.co.uk/news/worldnews/asia/china/8927580/China-hiding-up-to-3000-nuclear-warheads-in-secret-tunnels.html

But their missiles are not as good as the Russian / American ones and they don't have advanced submarines which are capable of launching SLBMs.