An 18-year-old Port Noarlunga woman has been arrested following an alleged assault at a takeaway restaurant in Hindley Street in the CBD last Friday.

A video of the alleged assault was shared on social media yesterday and quickly went viral.

Police will allege just after 1.30am, Friday 7 October, the woman punched a staff member in the head before throwing a drink and other items at staff and spitting at a staff member.

Following enquiries, police attended a Port Noarlunga address and arrested her.

She has been charged with disorderly behaviour, two counts of aggravated assault (shop worker) and commit a prohibited act with human biological material.

The 18-year-old from Port Noarlunga, has been bailed to appear in the Adelaide Magistrates Court on 24 November.