McDonald's has taken swift action to remove a franchisee who was filmed questioning the background of an Aboriginal man and woman in Victoria's northwest.

Rob Vigors and Karen Ridge are understood to have walked onto Robby Wirramanda's property at Mildura and taken an issue with an Aboriginal flag flying on the property.

Twitter/toostrong4karen

Mr Vigors and a woman, believed to be Ms Ridge then engage in a verbal confrontation, with the video later posted to social media by a relative of Mr Wirramanda.

WTF!!!! THIS HAPPENED TO MY PARENTS JUST LAST NIGHT pic.twitter.com/MqFfXgmV3z — Beautifuldeadly Decolonisation (@toostrong4karen) December 13, 2019

The woman can be seen tugging at the flag but is unable to remove it from its perch.

Mr Wirramanda can then be heard mocking the woman's efforts, remarking "it's too strong for you Karen!"

"You are a racist pig," he continues.

In reply, the woman can be heard questioning Mr Wirramanda's Indigenous roots.

"Which half of you is Aboriginal?" she says.

"Which one per cent of you is Aboriginal. You've got nothing in you that is Aboriginal?" Mr Vigors adds.

READ MORE Mildura woman attempts to tear down Aboriginal flag in viral video

After a brief exchange, Mr Wirramanda wishes the woman a good night.

"Go and live in your f****** humpy down the river," she replies.

The video of the incident quickly went viral, with #toostrongforyoukaren trending on Twitter.

Statement from my mum pic.twitter.com/GZMZ8T3HCB — Beautifuldeadly Decolonisation (@toostrong4karen) December 14, 2019

A spokesperson for McDonald's Australia has confirmed to SBS News it has now taken over operation of its fast-food outlets which were being operated by Mr Vigors.

“McDonald’s confirms the company has taken over the operation of the Mildura and Irymple restaurants, effective immediately, and Robert Vigors has left the system and is no longer involved.

“McDonald’s will be engaging with its employees regarding the change in arrangements, to ensure the ongoing operation of the restaurants.”

“The comments made are unacceptable and do not reflect the beliefs of the company as an inclusive workplace for our employees and customers. The matter is currently under investigation,” the spokesperson said.

We need more large corporations like @McDonalds with zero tolerance policies when it comes to racism. This is a victory for mob everywhere. I only hope there have been no young Blackfullas working there under him. #toostrongforyoukaren pic.twitter.com/YPuoThQa4L — Madeline Hayman-Reber (@MadelineHayman) December 15, 2019

The incident could see further fallout with Victoria Police confirming it is now looking into the fracas.

"Police have spoken to all parties involved and an investigation was initiated at the time," a spokesperson told SBS News.

"The investigation is ongoing."

#toostrongforyoukaren

While many viewers have been outraged by the confrontation, some social media users have taken a light-hearted approach to the #toostrongforyoukaren moment.

Karen reuses each teabag three times because the first cup is always #toostrongforyoukaren — Celeste Liddle (@Utopiana) December 14, 2019