Pyongyang: North Korea on Thursday announced the launch of medium-range missiles on Wednesday was a success and it considered this a necessary weapon to increase the country's capacity when carrying out a "pre-emptive nuclear attack".

Pyongyang launched two missiles from its eastern coast into the sea on Wednesday, the second of them appeared to function with relative success, EFE news reported. "The test-firing was successfully conducted without having any slightest effect to the security of surrounding countries," North Korea's state-run news agency KCNA said in a statement.