The shooter was killed by police, who recovered a semi-automatic rifle and two handguns. A number of students had been airlifted to nearby hospitals.
The meeting comes amid provocative statements and Twitter comments from Trump regarding North Korea’s nuclear programme.
Paris-based International Energy Agency forecasts US becoming the world's biggest net exporter by the end of 2020s.
BBC, citing sources on the ground, reports that US jets monitored a long convoy carrying Daesh militants and their families, along with weapon-laden trucks leaving Raqqa, after signing a deal with the YPG.
"The Atlantic" had first reported that Trump Jr co-operated with WikiLeaks to release Hillary Clinton's emails during 2016 US presidential election campaign.
Members of Republican Party demand that Roy Moore, their Alabama candidate, step down over the allegations that he had sexual contact with teenage girls when he was in his 30s.
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