Police find crash scene but no driver

Sydney police have arrived at the scene of a crash to find the car and the concrete wall it struck but no driver.

Officers were called to a site about 300m from the Henry Lawson Drive off ramp on the M5 at Milperra about midday on Tuesday.

They quickly identified the Mazda 2 which had been involved in the single-vehicle accident but the driver had apparently already abandoned the vehicle and is still to be located.