A 24-year-old man from Caerphilly remains in a critical condition in hospital after being involved in a crash that killed a teenage driver.
An 18-year-old man from Tongwynlais died after the blue Renault Clio he was driving overturned at Heol-Y-Fforest at 2.50am on Sunday morning, August 8.
South Wales Police said a 24-year-old man from Caerphilly and 23-year-old man from Tongwynlais were taken to the University of Wales Hospital.