Organisers of a Sydney Black Lives Matter rally have lost their appeal against a NSW Supreme Court ruling that their planned protest is prohibited.

The court on Sunday accepted the police argument that the possibility of community transmission of COVID-19 arising from the CBD rally made Tuesday’s planned event too risky.

The NSW Court of Appeal on Monday afternoon rejected a challenge by the organisers which was primarily based on an argument that the court did not have the jurisdiction to hear the police application.

Protest leader Paddy Gibson has said the event would go ahead even if today’s appeal was lost.

More than 4,000 people have indicated they plan to ahead Tuesday’s protest, which is planned to be held at Town Hall in Sydney’s CBD.