MASSKJUTNING: Flertal skadade på nattklubb i Thousand Oaks, Kalifornien

Multiple people have been shot after a gunman opened fire in a bar in Thousand Oaks, California.

Initial reports indicated that a man had opened fire with a semi-automatic gun at about 11.20pm.

Officers on the scene said around 30 shots had been fired and that victims would be at multiple locations as they fled, local media reported.

The suspect has been described as a Middle Eastern man in his early 20s wearing all black clothing and with a beard.

Authorities in Ventura County, Calif., late Wednesday responded to reports of a mass shooting at a nightclub hosting a college event, reports said.

Police said multiple injuries were reported at the Borderline Bar & Grill, a popular nightclub in Thousand Oaks during a College Country event. No immediate information was available on the possible number of victims.