State officials made the statement on Tuesday morning as a warning to the West.
The director of the North Korean's Atomic Energy Institute told the official KCNA news agency that the country was fully ready to cope with U.S hostility with "nuclear weapons any time."
This week it emerged that the rogue nation has been working on the ability t
o mount a nuclear warhead on rockets, which would give tubby tyrant Kim Jong-un the ability to carry out catastrophic nuclear strikes.
North Korea's satellite launch could spark international outrage as it is a major violation of international sanctions.
North Korea is banned under UN Security Council resolutions from conducting tests that use ballistic missile technology, but it has defied international warnings and sanctions to pursue missile and nuclear programmes.
The North claims its rocket launches are part of a legitimate space programme aimed at putting satellites into orbit.
Satellite images previously showed North Korea had completed upgrades to its main satellite launch site near the west coast, fuelling speculation of a planned long-range rocket launch to celebrate the 70th anniversary.
But South Korea's defence minister said last week there were no indications of actual preparations for a missile launch.
North Korea, the most secretive country on the planet, has an arsenal of missiles of various ranges and is believed to be developing an intercontinental ballistic missile (ICBM) aimed at delivering nuclear weapons, although it is considered years away from such deployment.
The North is also working to miniaturise a nuclear warhead to mount on a delivery vehicle.
In August 38 North, the US-Korea Institute at Johns Hopkins University, said North Korea was refurbishing a major uranium mill in Pyongsan.
source dailystar
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