US officials have examined "black boxes" from the Asiana Airlines Boeing 777 flight that burst into flames upon landing in San Francisco, killing two teenage Chinese students.
There was no immediate indication of the cause of Saturday's accident but Asiana said mechanical failure did not appear to be a factor.
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Families torn apart when so-called Islamic State militants abducted their their young daughters are slowly being reunited.
Syria's ambassador to the UN told ITV News: "We are not killing our own people. We are fighting terrorists, this is the government's duty."