South Wales Police were called to a collision involving a car and a pedestrian shortly after 9.30pm on Monday.

The girl died at the scene on Heol Trelai in the Caerau area of the Welsh capital.

A 40-year-old man has been arrested on suspicion of causing death by dangerous driving.

He has been taken to Cardiff Bay police station.

A spokesperson for the Welsh Ambulance Service confirmed they attended the incident on Monday evening.

"We deployed a rapid response vehicle, an emergency ambulance and were supported by the Emergency Medical Retrieval and Transfer Service along with pre-hospital immediate care specialists from MEDSERVE Wales," they said.

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South Wales Police say their thoughts are with the family of the girl.

An investigation into the incident is ongoing.