President Barack Obama has described the Dallas shootings as a "vicious, calculated, despicable attack," according to television news coverage. Obama spoke to reporters Friday morning in Warsaw, Poland, where he's participating in a NATO summit. He described the killings as a "tremendous tragedy" and as "senseless murders." Obama said of the multiple suspects, some of whom have been captured or are reportedly dead, "We will learn more about their twisted motivations. Let's be clear: There is no possible justification" for the attacks. And he added: "Justice will be done." Shots were fired on police officers working at what had been a peaceful Black Lives Matter protest in Dallas Thursday night following two officer-involved deaths of black men this week.
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