Two workers set alight in brazen daylight firebombing believed to be linked to tobacco wars

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.

READ MORE: Millions join 'No Kings' protests across the USA

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 its owner telling 9News they had accelerant poured over them and were set alight.

READ MORE: The wretched fate Anthony Albanese is hoping to dodge in just two days

"There's just people screaming, running everywhere, next minute the fierys and everyone's here," one witness said.

Security cameras captured the alleged attackers arriving in a black Lexus.

Nearby workers chased after them as they fled down Henley Beach Road, smashing into another innocent motorist as they made their escape.

Police say three men of Asian appearance entered the store and started a fire, possibly using a Molotov cocktail.

The attack happened at about 11.30am during the busy Saturday rush, with several people inside.

Part of Henley Beach Road was shut down as police swarmed the area and paramedics treated a 26-year-old worker for burns to his legs and arms.

He was loaded into an ambulance and taken to the Royal Adelaide Hospital.

READ MORE: Fears multiple takeaway orders contaminated with rat poison

Detectives from Operation Eclipse, who are investigating Adelaide's tobacco wars, were immediately on scene as it's made clear it was a targeted attack.

A burnt boot was left behind, belonging to one of the alleged attackers who fled.

An hour after the attack a man with serious burns was found at home in Angle Park.

He tried to tell ambulance crews he had burns from a BBQ but police believe he was involved.

And as they hunt for the other two attackers, Saray is counting the cost of another fire bombing attack - it's the third in the past 16 months.

DOWNLOAD THE 9NEWS APP: Stay across all the latest in breaking news, sport, politics and the weather via our news app and get notifications sent straight to your smartphone. Available on the Apple App Store and Google Play.