California open fire: 13 people, including US cop and shooter killed in California bar open fire in Thousand Oaks

Around 13 people including cop and shooter were killed in an open fire after a gunman barged into a crowded Los Angeles-area country music bar and dance hall and shoot in open on late Wednesday night.

The sheriff says 13 are dead including the gunman, sheriff's sergeant after shooting at Southern California bar, reports The Associated Press.

The California bar was hosting an event for college students and possibly hundreds of young people were inside it, Captain Garo Kuredjian of the Ventura County Sheriff's office.

Ventura County Sheriff's Office Sgt Eric Buchow told the CBS affiliate in Los Angeles that there were "multiple fatalities" in the shooting and the gunman was dead inside the crowded venue in the upscale residential suburb of Thousand Oaks, reported NDTV.

Police who responded to reports of a shooting rushed to the scene and engaged the gunman, said Kuredjian. The Los Angeles Times quoted a law enforcement official as saying at least 30 shots had been fired.

"He shot a lot, at least 30 times. I could still hear gunshots after everyone left," the Times quoted the man as saying.

An unnamed witness told the newspaper that someone ran into the bar around 11:30 pm and started shooting what looked to be a black pistol.