Allan was with Treasure Jaclyn Symes in West Melbourne when Sewell arrived.

“Why don’t Australians have the right to protest?” Sewell could be heard saying.

“Why do you want to ban us from protesting? Shouldn’t we have the right to speak in our own country?”

Sewell was held back by security as Allan and Symes quickly left.

Sewell was heard telling security, “You don’t have the right to put your hands on me”.

“We’re going to take this country back from politicians like you,” he said to Allan.

Sewell left the scene after Allan, walking away on foot.

The white nationalist leader, originally from New Zealand, addressed the audience during the anti-immigration March For Australia gathering held in Melbourne on Sunday.

In his tirade at the press conference, Sewell also incorrectly claimed 50,000 people attended that rally.

On Sunday, he was also seen in a crowd that allegedly attacked an Indigenous encampment, Camp Sovereignty, after splitting off from the main rally.

Police are investigating the incident, which Police Minister Andrew Carbines labelled “gutless”.

9news.com.au has contacted Victoria Police over Sewell’s appearance at the press conference.