Reports of at least 12 fatalities at the Borderline Bar & Grill in Thousand Oaks, California, about 40 miles from Los Angeles. Suspect confirmed as dead.
Live tweet updates here: https://twitter.com/vcscanner?lang=enWitnesses say the suspect was dressed in all black, and forced his way into the bar after first shooting the bouncer.
A college country music night was under way when the suspect apparently threw a smoke grenade into the crowd before opening fire with at least one weapon.
Witnesses told CNN that he used a short-barrelled shotgun, while others told local media that he carried a "smaller-calibre handgun with a light or laser attached to the bottom of it".