A South African man's visa was cancelled and he was detained in a pre-dawn immigration raid after attending a neo-Nazi rally outside the NSW Parliament in Sydney. The man, whose identity has not been disclosed, was part of a group of demonstrators who clashed with counter-protesters at the rally.

The South African man's involvement in the rally raised concerns about foreign actors spreading hate and extremist ideologies in Australia. Immigration officials acted swiftly to revoke his visa and take him into custody for questioning.

The incident has highlighted the growing threat of far-right extremism in Australia, and the need for authorities to monitor and crack down on individuals promoting hate speech and violence. Prime Minister Scott Morrison condemned the rally and vowed to take decisive action against those inciting hatred in the country.

This alarming incident serves as a reminder of the importance of vigilance in upholding Australia's values of diversity and inclusivity, and the need to combat extremism in all its forms.