An 87-year-old man is in hospital with serious injuries following a car crash in Cardiff on Thursday.
South Wales Police has issued an appeal for witnesses following the collision which involved a white Citroen and a black Mercedes near Callaghan Square at around midday.
The elderly man sustained a number of serious injuries and was taken to the University Hospital of Wales where he currently remains.
A 28-year-old man has been arrested on suspicion of drink-driving and dangerous driving and remains in police custody.
A second man, aged 29, was also arrested on suspicion of the same offences and has been released under investigation.