A neo-Nazi gathering outside NSW parliament in the wake of laws banning the incitement of racial hatred has drawn anger and condemnation from Premier Chris Minns and Jewish groups.

Police have also been challenged on why the event was allowed to take place.

A group of several dozen black-clad men - reportedly members of the National Socialist Network (NSN) - were involved in the demonstration in Sydney's Macquarie Street on Saturday morning.

Photographs of the event published by the Sydney Morning Herald show the men beside a large banner draped across the gates of the parliament carrying the slogan "Abolish the Jewish Lobby".

"Part of me wrestling with those distressing images ... is that you don't want to give these pissants more oxygen," Mr Minns told reporters.

"I know holding thi

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