Latest: President Donald Trump has offered condolences after a mass shooting at a southern California bar.
Mr Trump said on Twitter that he has been “fully briefed on the terrible shooting”.
He praised law enforcement, saying “Great bravery shown by police” and said “God bless all of the victims and families of the victims”.
A gunman opened fire on a crowd at a country dance bar holding a weekly “college night” on Wednesday night.
The mass shooting killed 12 people and sent hundreds fleeing in terror.
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The gunman was later found dead at the scene. Law enforcement said the dead from the shooting included 11 people inside the bar and a sheriff’s sergeant who was the first officer inside the door.
13 die and 10 are wounded in shooting at California bar.
Thirteen people have died, including a sheriff’s sergeant and the gunman, after a shooting inside a crowded Southern California bar. Ventura County Sheriff Geoff Dean said sheriff’s Sergeant Ron Helus responded to the scene and was shot after he entered the building.
He died at a hospital early on Thursday but authorities did not say how the gunman died.
Mr Dean said around 10 other people were shot and wounded.
Ventura County Sheriff’s Office Captain Garo Kuredjian said the first reports of shots fired came around 11.20pm local time at the Borderline Bar & Grill in Thousand Oaks, which is about 40 miles west of Los Angeles. The bar’s website said it hosts College Country Night every Wednesday.
Gunman dead after at least 11 wounded in attack on California bar
Latest: The gunman who injured 11 people inside a Southern California bar is dead, Ventura County Sheriff’s Office Sergeant Eric Buschow has said. A deputy who responded to the incident was shot and taken to a hospital while no other information on the other victims was immediately known.
The Borderline Bar & Grill in Thousand Oaks, which is about 40 miles west of Los Angeles.
The bar’s website said it hosts College Country Night every Wednesday and police said hundreds were inside when the shooting occurred.
Gunman wounds 11 at California bar’s college night
A gunman has opened fire inside a country dance bar crowded with hundreds of people on college night, wounding 11 including an officer who had rushed to the scene, police in California said.
Ventura County sheriff’s Captain Garo Kuredjian could not confirm whether any of those shot were dead.
He also said he could not confirm whether the gunman was killed or in custody, but added there is no further threat to the community.
Mr Kuredjian said hundreds of people were in the Borderline Bar & Grill in Thousand Oaks at 11.20pm on Wednesday, and shots were still being fired when officers arrived.
Tayler Whitler, 19, said she was inside the bar when a man walked in with his face partly covered by something resembling a ski mask, opened fire on a person working on the door, then began to shoot people at random.
“It was really, really, really shocking,” she told KABC-TV as she stood with her father in the Borderline car park. “It looked like he knew what he was doing.”
It was college night and country two-step lessons were being offered at the Borderline, according to its website. It has been “quite some time” since there was a shooting of any kind in Thousand Oaks, a city of about 130,000 people around 40 miles west of Los Angeles.
Nick Steinwender, student body president at nearby California Lutheran University, rushed to the scene when he heard about a shooting at the bar where he knew friends and fellow students were.
“It was chaos, people jumping out of windows, people hopping over gates to get out” Mr Steinwender told KABC.
He said he heard from people inside that they were hiding in toilets and the attic of the bar.