NZ shootings seen as racist attack; 49 dead

  CHRISTCHURCH, New Zealand --- Mass shootings at two mosques full of worshippers attending Friday prayers left at least 49 dead on what the prime minister called "one of New Zealand's darkest days," as authorities detained four people and defused explosive devices in what appeared to be a carefully planned racist attack.   Prime Minister Jacinda Ardern said the events in Christchurch represented "an extraordinary and unprecedented act of violence" and acknowledged that many of those affected may be migrants and refugees.   In addition to the dead, she said more than 20 people were seriously wounded.   "It is clear that this can now only be de...

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