Brussels: The European Union condemned North Korea`s claimed hydrogen bomb test Wednesday as a "grave violation" of a UN ban on its development of nuclear weapons and a threat to the region.


"If confirmed, this action would represent a grave violation of (North Korea`s) international obligations not to produce or test nuclear weapons, as determined by several United Nations Security Council Resolutions, and a threat to the peace and security of the entire northeast Asia region," EU foreign affairs head Federica Mogherini said in a statement.