Arrest made after four injured in Neath Road, Tonna crash
A 20-year-old man has been arrested on suspicion of causing serious injury by dangerous driving after a crash in Neath Port Talbot.
The incident happened on Neath Road, Tonna, at about 03:30 GMT on Tuesday.
Four people were injured in the one-vehicle crash and taken to Morriston Hospital, Swansea.
A 15-year-old girl is serious but stable after being transferred to University Hospital of Wales, Cardiff.
A man, 20 and woman, 17 have been discharged from hospital and another man, 21 is being treated for non life-threatening injuries.
Police appealed for witnesses who may have seen the Ford Ka being driven before the collision.