A fourth individual has been charged in connection with an alleged attack on a First Nations camp in Melbourne over the weekend. The incident occurred at Camp Sovereignty in Kings Domain, where a group of men dressed in black clashed with camp occupants after marching from an anti-immigration rally in the central business district on Sunday.

Thomas Sewell, a neo-Nazi leader, is currently in custody following his arrest earlier this week. Victoria Police reported that a 29-year-old man from Rye was arrested on Wednesday in Mount Eliza. He faces charges of violent disorder, affray, unlawful assault, and discharging a missile. This man is scheduled to appear in the Melbourne Magistrates' Court today.

Sewell, 32, along with two other men aged 20 and 23, was arrested and charged on Tuesday. Police are continuing their investigation into the attack on Camp Sovereignty and have encouraged anyone with information or video footage to reach out to CrimeStoppers.

During a court appearance on Wednesday, Sewell was remanded in custody after police argued he posed a danger to the community. A judge is set to decide on Friday whether to grant his bail request. Sewell faces a total of 25 charges, including violent disorder, affray, assault, and discharging a missile related to the incident.

Detective Senior Constable Saer Pascoe testified in court that Sewell's recent behavior has shown an escalation in violence. He stated, "The applicant's behaviour in recent times has been escalating in violence and concerning behaviour." Pascoe also noted that Sewell's white supremacy group has a documented history of hate crimes, posing a risk of serious injury or death to those who oppose them. He described Sewell as having complete control over a group of followers who would attack on his command.

Sewell's behavior was described as "aggressive and erratic" when he interrupted a press conference held by Premier Jacinta Allan just hours before his arrest. The alleged attack on Camp Sovereignty was characterized as unprovoked, with reports of victims being kicked, punched, and assaulted with a pole. At least three individuals sustained injuries, including one who required staples for a head wound.

However, Sewell's lawyer, Matthew Hopkins, contended that there would be evidence presented in court indicating some provocation from the black-clad men prior to the melee. He mentioned potential evidence of graffiti on cars as part of this claim.

At the time of the incident, Sewell was already on bail and was in the midst of a contested hearing for charges related to intimidating a police officer. His lawyer accused law enforcement of pursuing Sewell for political reasons, suggesting that the charges stemming from the Bourke Street incident were intended to undermine his chances of securing bail. "The prosecution evidence is really intertwined with what seems to be a political attack on Mr. Sewell," Hopkins stated.