At least 10 people have been killed and 7 more injured following a shooting at a college campus in the US state of Oregon.

Police received a call of an active shooter in a classroom at the Umpqua Community College on Thursday at 10:30 am, local time, according to the Douglass County Sheriff’s Office.

As many as 10 people were killed and 7 injured in the shooting. Earlier reports had put the number of people dead and wounded much higher.

Police have taken the 20-year-old gunman into custody but the motives behind the shooting remain unclear, Oregon State Police spokesman Bill Fugate said.

But later reports said that the suspect was killed by police.

Residents and students were warned by authorities not to go to the campus. The college website has been down since the shooting.

The college, located in Roseburg, Oregon, has about 3,000 full time students and 16,000 part-time students.

Authorities said the shooting took place in one of the classrooms in the science building at Umpqua Community College in Roseburg and that a suspect was in custody.

Every year, more than 30,000 people are shot and killed in the United States.

The US averages 87 gun deaths each day as a function of gun violence, with an average of 183 injured, according to the University of Chicago Crime Lab and the Centers for Disease Control.

About 4.5 million firearms are sold annually in the United States at a cost of 2 to 3 billion dollars.

On December 14, 2012, twenty children and six adults were fatally shot by a gunman -- who later killed himself -- at the Sandy Hook Elementary School in the town of Newtown in the US state of Connecticut.

Following the Sandy Hook shooting, President Barack Obama pushed for gun reform, including expanded background checks and a ban on high-capacity magazines, but the powerful gun rights lobby and its people in Congress fiercely opposed the measure.

Obama has said the “biggest frustration” of his time in the office has been the inability to reduce unparalleled levels of gun violence in the country.