President Obama's made another impassioned plea for more gun regulation in the US after 10 people were killed in a mass shooting at a college in Oregon.
The gunman – who's been named in reports as 26-year-old Chris Harper Mercer – attacked students inside a classroom.
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He died in an exchange of fire with police in the city of Roseburg.
Mr Obama says America must take action to stop incidents like this from happening.
