The gunman at Arapahoe High School in Colorado was looking for a specific teacher when he was confronted by a student, local media has reported.
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Vehicle imports and exports could be seriously affected by a no-deal Brexit scenario.
Theresa May has told the three million EU citizens living in Britain she will make it as easy as possible for them to stay after Brexit.
Ahead of its roll-out in Manchester, some Universal Credit recipients describe feeling "trapped" as they wait weeks to receive benefits.