A MAN last night fled the scene of a crash which was the result of a street drag race between two cars in Perth's southern suburbs.

Just after midnight the two cars, driven by a 26-year-old man and a 30-year-old woman, were racing on South St, near Stock Rd, O'Connor, when one of the cars clipped the other.

This sent one of the cars into the retaining wall of a furniture shop, which police said received 'significant damage'.

A third vehicle, which was not involved in the suspected illegal racing, became caught up in the crash, and the 51-year-old driver and two passengers were conveyed to hospital for treatment of minor bruising and shock.

Neither drivers of the cars involved in the race were seriously injured. Police said no charges have yet been laid.