Police are at the scene of a shooting incident on Queensland's Gold Coast that appears to have been an act of road rage.

A man in a car has fired a shot from his vehicle into another car.

A single shot has passed through the door of another man's car and it appears that either that shot or shrapnel from it has grazed the driver's leg.

Police are still trying to determine why the incident occurred.

It was on a main road in Southport.

The man who fired the shot has fled the scene and police are trying to find him.

Authorities say a number of triple-0 calls were received around 1:00pm (AEST).

The man who was shot at appears to be all right.

He has been examined by paramedics and has been speaking with police.

He is quite shaken but does not appear to have suffered any serious harm.