ROSEBURG, Ore. -- Thirteen people were killed during a shooting at Umpqua Community College near Roseburg Thursday morning, officials confirmed. Twenty others were wounded.
The shooter fired at officers and was killed, according to Douglas County Sheriff John Hanlin.
There is no longer a threat on the campus.
The shooter was a 20-year-old man, Gov. Kate Brown said during a press conference. She did not identify him by name.
"Our thoughts and prayers are with the victims and their families," Brown said. "We're holding the Douglas County community in our hearts today."
President Obama has been briefed on the situation.
Related: Condolences, prayers pour in for #UCCShooting victims
Police received a call of an active shooter in a classroom at the college at 10:38 a.m., according to the Douglas County Sheriff’s Office.
"Officers from around the county responded," Sheriff Hanlin said. "Upon arrival, they located one of the shooters in one of the buildings."
The shooter engaged with officers and was killed. Officers later learned he was the only shooter.
Photos from scene of shooting near Roseburg
Authorities in Roseburg quickly spread the word and called on residents and students not to go to the campus.
"Active shooter at UCC. Please stay away from the area," tweeted Fire District No. 2, which serves Douglas County.
One student, 18-year-old Kortney Moore, told News Review-Today that she was in her writing class in Snyder Hall when a single shot came through a window.
Moore said she saw her teacher get shot in the head, apparently after the gunman came into the classroom. At that point, Moore told the newspaper, the shooter ordered everyone to get on the ground. The shooter then asked people to stand up and state their religion and then started firing, Moore said.
Dispatch recordings tell horror of school shooting
Students who were in class at the time said the school went into lockdown while SWAT teams searched for the shooter. Students hid behind desks and teachers locked classroom doors.
A student who asked not to be named told KGW she was in the building next to where the shooting happened.
"I remember hearing an employee saying there was a shooter on campus and I ran to the classroom and yelled, 'We need to get into lockdown,'" she said.
Her classroom was evacuated by police after the shooter was killed.
"I'm still shaken up about the whole thing. It's traumatic," she said. "I feel for the people and families who have been affected."
Six LifeFlight helicopters from as far away as Boise were dispatched to help the victims. At least 12 were taken to the Mercy Medical Center in Roseburg.
The federal Bureau of Alcohol, Tobacco, Firearms and Explosives tweeted that it had special agents at the college and was sending additional agents, as well as a K-9 team, to the scene. Portland Fire and Rescue also sent crews to Roseburg.
Students who were not hurt were bused to the Douglas County Fairgrounds, where they reunited with friends and family. The Red Cross set up a "Safe and Well" to help reunite people.
There was only one security officer on duty and that person was unarmed, the former president of Umpqua Community College told the Associated Press.
The wire service reports that Joel Olson said one of the biggest debates on campus was whether the school should have armed security officers. He said the college had three training exercises with local law agencies in the past two years, "but you can never be prepared for something like this."
Umpqua Community College is a college located six miles north of Roseburg and three hours south of Portland. The school has about 3,300 full-time and 16,000 part-time students.
Tracking the day: How events unfolded in Roseburg
TIMELINE: Other school shootings since Columbine
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