Coward punch sparks all-in brawl on busy road

Dash cam has captured a road rage brawl in Adelaide sparked after one driver coward punched another last night.

The video shows a group of motorists arguing outside their vehicles at a set of traffic lights at the intersection of Tapleys Hill Road and West Lakes Boulevard in Seaton.

Suddenly, the man dressed in a black t-shirt throws a punch at one of the men.

The remaining motorists then begin fighting, crashing to the ground as more punches traded.

At one point, the man wearing a light-coloured shirt appears to be held down as he’s kicked.

Despite the lights turning green, the flurry of blows continues.

Witnesses told 9NEWS they were not certain of what happened in the lead up to the brawl.

“I was surprised because usually you see those kind of things on YouTube videos not in real life,” one witness said.

Police this afternoon confirmed the victim has reported the matter, and investigations are underway.

Watch the full news bulletin on 9Now