The Keeping Up With the Kardashians stars were addressing the large crowd when the woman started throwing eggs at them, reported E!Online.

"Following an incident at a shopping centre in Parramatta around 4:30 yesterday afternoon, a 25-year-old woman from Punchbowl was arrested and taken to the Parramatta police station," a spokesperson for the New South Wales police said.

"She was charged with three counts of assaulting a police officer (she assaulted three police officers in total). The police officers were trying to arrest her and she resisted.

The woman was also charged with behaving in an offence manner."

The spokesperson said that the woman was one of several thousand people attending the event.