There's been a dramatic and dangerous escalation in the spate of arson attacks on Adelaide businesses.

This time a business at Torrensville has been targeted by a firebombing gang while it was open.

A worker was burned and one of the alleged offenders caught alight in the chaos.

Footage of the confronting moment was captured on CCTV as the alleged arsonists made their bungled getaway.

The video shows an unsuspecting man walking towards the door of the business just as the attack unfolds.

He is seen jumping back as masked men run back outside, one of them suffering burns.

Two innocent workers were caught up in the terrifying attack, believed to be linked to Adelaide's ongoing tobacco wars.

Staff inside Saray - a Mediterranean supermarket, butcher and restaurant - were ambushed, with

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