U.S. worried by ballistic missiles with nuclear warheads on alert in North Korea.
In North Korea, at least one ballistic missile "Musudan" vertical faces, ready to launch, announced the official U.S. representative
Military intelligence, and that North Korea probably has put nuclear warheads on ballistic missiles, but the reliability of the weapon was weak because it was not tested.
Member of Colorado first made the first public confirmation by the U.S. government that Pyongyang may have succeeded in his efforts to acquire nuclear weapons.
Such statements are contained in the report of the Defense Intelligence Agency.
"Medium confidence Agency believes that North Korea now has nuclear weapons capable of being carried by ballistic missiles," it said in a report cited by the lawmaker Doug Lamborn.
The lawmaker also stressed that the reliability of such a weapon would be small.
John Kerry arrived in South Korea to save the situation.
Three-day visit began on Friday, will take him to China and Tokyo.
Washington is trying to push China to nuclear rebounds and belligerent rhetoric, Kim III.
Kerry hopes to persuade China to use its economic and diplomatic influence to try to mitigate the behavior of North Korea.
North Korea conducted its third nuclear test in February, prompting UN sanctions and resolutions.
And Barack Obama on Thursday urged North Korea to end 'militant' approach, following intelligence report suggested that North Korea may have or develop nuclear weapons that fit on a ballistic missile.
Missile "Musudan" located near the northeastern city Uonsan and put on standby, said first Japanese agency "Kyodo".
Musudan range is 4,000 km. naya and likely aimed at U.S. bases.
South Korea worries about multiple burst firing Scud missiles and Rodong medium-to long-range.
Ballistic missiles Tephodon-2 with range up to 9000 km, until intelligence silent, and they are the most dangerous in the event that Americans slept through them.
Tephodon-2 has three North Korean ballistic missile test and failure of 5 July 2006.
Medium-range missile is about 6000 km with 900-pound warhead. For loads less than 500 kg, it would have to reach 10,000 km and under load of about 1300 kg, it would be approximately 4000-4500 km.
On September 15, 2008 has been successfully tested advanced engine Tephodon-2.
In 2012, North Korea fired a companion Kvanmyonson-2 with space-variant Tephodon 2.
United Forces Command in Seoul increased willingness by one notch to N3 status
Sources from the Ministry of Defence said on condition of anonymity that North Korea is capable of conducting simultaneous burst firing multiple missiles "Scud" and Rodong medium-range and long-range missiles.