Growing calls to deport neo-Nazi leader Thomas Sewell back to New Zealand have sparked a fiery response from the nation’s Prime Minister to brand him as an ‘awful human being.’

Sewell, 32, was allegedly among a group of men dressed in black who stormed Camp Sovereignty in Kings Domain on Sunday afternoon following the March for Australia rally in Melbourne’s CBD.

Footage showed Sewell and neo-Nazi supporters lashing out at crowds gathered at the camp, the site of remains of Indigenous people from 38 clans.

Sewell sparked more chaos two days later when he gatecrashed Victorian Premier Jacinta Allan’s press conference with an angry outburst. Hours later, he was arrested and charged over the Kings Domain incident.

Sewell is understood to be an Australian citizen, despite being born in New Zealand.

Kiwi Prime Minister Christopher Luxon was forced to weigh into the saga, amid mounting calls from Aussies for Sewell to be deported back to New Zealand.

Luxon distanced his country from the controversy, claiming that it was Australia’s problem.

‘He sounds like a pretty awful human being, and he’s an Australian citizen so I’ll let that run its course,’ he told reporters in Auckland on Thursday.

There are growing calls to deport neo-Nazi leader Thomas Sewell (pictured) to New Zealand, where he was born

New Zealand Prime Minister Christopher Luxon (pictured) says that Thomas Sewell is Australia’s problem

Sewell was charged with 25 offences over Sunday’s incident, including violent disorder, affray, assault by kicking, discharge missile and other offences.

He currently remains in custody but will reappear in court on Friday for a bail application.

Detectives continue to investigate the alleged incident in the Kings Domain and urge anyone with any information or footage that may assist police to contact Crime Stoppers on 1800 333 000.

In recent days, almost 100,000 supporters have signed a Change.org petition calling on Sewell to be deported to his country of birth.

Petition organiser Constitutional Reformist, called on a change to the Australian Citizenship Act 2007 to enable a High Court deportation.

‘We are not backing down. We are evolving. And we are demanding a legal system that protects communities, not extremists,’ they said.

The approach of the petition has two steps: the first to revoke Sewell’s Australian citizenship ‘through a court-authorised process, based on his violent extremist conduct and likely dual nationality’.

It also demands urgent reform of the Australian Citizenship Act 2007.

Thomas Sewell was arrested by police hours after he gatecrashed Jacinta Allan’s press conference on Tuesday

‘So that individuals convicted of serious hate-fuelled crimes can have their citizenship revoked and be subject to deportation with full judicial oversight and constitutional safeguards,’ the petition states.

Home affairs minister Tony Burke said that it would not shock him if Sewell packed up his bags and moved back across the ditch.

‘I wouldn’t be surprised if he renounces his citizenship here anyway,’ Burke told the Daily Mail on Wednesday.

‘He clearly hates modern Australia.’