Watch: Bystander who tackled armed man at Bondi Beach shooting hailed as hero

The man has been hailed as 'genuine hero' who saved 'countless lives' by putting his own life at risk 

A bystander captured on video tackling and disarming an armed man during an attack in which 15 people, plus an alleged gunman, were shot dead at a Jewish holiday event at Sydney's Bondi Beach on Sunday has been hailed as a hero whose actions potentially saved lives.

Footage circulating on social media shows a man in a car park wearing a white shirt running up to a man in a dark shirt who is holding a rifle. He then tackles the armed man from behind, wrenching the rifle from him with his hands before pointing the gun back at the man.