AP/Ryan Kang

Ten people have been killed and at least seven were injured in a mass shooting at Umpqua Community College in Roseburg, Ore., police confirmed to ABC News.

A government official confirmed to The Associated Press late Thursday that the shooter was Chris Harper Mercer, 26.

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Oregon Governor Kate Brown told reporters earlier Thursday that Mercer is deceased. Brown left the press conference to head directly to the Roseburg area.

During a Thursday afternoon press conference, Douglas County Sheriff John Hanlin said officers responded to 911 calls from the college at 10:38 a.m. The officers exchanged fire with the suspect and "neutralized" him.

Oregon State Police issued a statement saying that there is believed to only be one shooter.  The Douglas County Sheriff's Office posted to Facebook that students were taken to Douglas County Fairgrounds and can be picked up there.

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President Obama gave his condolences to the victims of the attack during an evening press conference at The White House. He also expressed frustration with the continued occurrence of mass shootings in America.

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"Somehow this has become routine. The reporting is routine. My response here at this podium is routine. The conversation in the aftermath. We've become numb to this," he said.

Obama also called for stricter laws regulating the sale of guns.

This post has been updated throughout as more information becomes available.