Article: A GUNMAN armed with a machine gun and smoke grenades opened fire at a bar in California injuring “dozens” of people, according to reports. A police officer is among the wounded in the mass shooting at the Borderline bar in the city of Thousand Oaks near Los Angeles, reports say. The shooter is reportedly still “active” and has exchanged fire with cops after a “massive” response from local law enforcement. People are said to be hiding in bathrooms and attic spaces in a bid to flee the gunman who was carrying an “uzi” machine gun and smoke grenades, reports claim. The injured cop is reportedly “down and unresponsive” and cannot be reached by emergency medical workers. According to reports, the shooting has been upgraded to a level 2 mass casualty incident indicating that there are between 10 to 20 injured victims. A police source told the LA Times that at least 30 shots have been fired. Four ambulances have attended the scene to treat the injured victims. Borderline is a western-themed bar and grill with a dancefloor which is popular with late-night revellers. Thoughts and prayers.