BRUSSELS (Reuters) - North Korea s latest missile launch is a  further unacceptable violation  of its international obligations, a spokeswoman for the European Union foreign affairs chief said on Tuesday. North Korea fired a missile that landed close to Japan in the early hours of Wednesday, the first test by Pyongyang since a missile fired over its neighbor in mid-September. The Pentagon said its initial assessment was that it was an intercontinental ballistic missile.  This launch represents a further grave provocation, and a serious threat to international security,  a spokeswoman for Federica Mogherini said. 