New Jersey Governor Chris Christie said "there is no justification" for the behaviour of his former aide Bridget Kelly's over the bridge scandal.
Christie, a possible Republican White House contender, told a news conference, "There is no justification for ever lying to a governor or a person in authority in this Government".
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The British territory of St Helena is in the South Atlantic, and the government has warned swimmers to enter the sea at their own risk.
Dramatic dashcam footage captured the moment a four-year-old girl was left seriously injured after falling out the back of a bus.
Tony Kim, who taught accounting at Pyongyang University of Science and Technology, was detained as he tried to leave the country.