The police investigation into the serious incident which happened in Pencoed on Saturday is now being treated as a murder inquiry.
The incident took place in Felindre Road, Pencoed, in the early hours of Saturday, February 28.
We can confirm the 58-year-old man who was critical in hospital passed away earlier today. His family are being supported by specially trained officers at this time, and our thoughts are with them.
The Major Crime Investigation Team at South Wales Police is now leading the investigation, and the 26-year-old man arrested remains in police custody.
Detectives investigating the incident are appealing to anyone who may have been in the vicinity of Felindre Road, Pencoed, between midnight and 5am on Saturday, to get in touch.
Motorists are urged to their check dashcams for any footage which may be relevant.
Detectives would like to speak to two potential witnesses: two elderly people who are believed to have walked along Felindre Road between 12.30am and 4am on Saturday.