Three people were taken to hospital after a car left the road and hit a pedestrian.
The crash happened on Harewood Road, in St George, in the early hours of Thursday.
In a statement, the fire service said: "Crews from Temple and Kingswood were mobilised to reports of a road traffic collision at 00:10 hrs on Harewood Road, St George.
"On arrival, firefighters found one vehicle had left the road and have collided into a garden and a pedestrian."
The fire service said three people were taken to hospital and that ambulance crews were also in attendance.
The ambulance service was contacted for more information.
