An Australian reporter was shot with a rubber bullet by riot police while covering the ongoing mass protests in Los Angeles.

US correspondent for Nine Lauren Tomasi was reporting on the 'rapidly deteriorating' riots in the city on Sunday evening, local time, when she was hit.

'The LAPD are moving in on horseback and firing rubber bullets at protesters,' Tomasi said.

As she told viewers the police were 'moving them (protesters) on through the heart of LA' several loud bangs were heard in the distance.

Just moments later a policeman was seen turning his gun towards Tomasi.