SYDNEY - Australia held a national day of mourning on Aug. 7 for its citizens killed in the downing of Malaysia Airlines Flight MH17 in Ukraine last month, even as Russia said it was ratcheting up its response to Western sanctions imposed over the disaster.
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Families of the victims leave floral tributes during a national day of mourning service for the victims of Malaysia Airlines flight MH17 at St. Patrick's Cathedral in Melbourne on August 7, 2014.