A 61-year-old man from Bridgend has been arrested on suspicion of murder, and the woman who was driving a car that hit a wall on Coity Road has died in hospital, police said.
South Wales Police said the driver, a 47-year-old woman from North Cornelly, had injuries that were not caused by the crash.
Despite medical attention, she died at hospital, the force said. Her family has been told, though formal identification has yet to take place.
The arrested man is in police custody, according to the force.

Car hit a wall on Coity Road at 12.43pm on Monday
Officers were called to Coity Road at around 12.43pm on Monday 19 October after a report that a car had collided with a wall, South Wales Police said.
When they got there, officers found the driver had injuries the force said were not linked to the collision. She was taken to hospital.
At 1.37pm the force said Coity Road was closed in both directions at the junction with Highland Place, was expected to stay shut for some time, and asked drivers to use other routes.
Photos taken at the scene on Monday afternoon show the car against a wall by the junction, with a fire engine, police vehicles and an ambulance inside the cordon and a forensics officer in a white suit nearby.
The Wales Air Ambulance helicopter was also sent to Coity Road on Monday.
A spokesperson for the charity said: “I can confirm the Wales Air Ambulance helicopter attended an incident.”
“Our Dafen-based crew was allocated at 1.07pm and arrived at scene at 1.32pm. Our involvement concluded at 3pm.”

Building evacuated and police cordon put up at Ger-y-nant
By Monday evening, police said there was “a significant policing presence” in the area of Ger-y-nant, as officers worked “to understand events leading to the collision”.
A building had been evacuated and a police cordon put in place “to maintain public safety”, the force said, asking people to stay away so emergency services could reach the scene.
The operation at Ger-y-nant ran through the night, and people were displaced from their homes, according to the force. On Tuesday morning, police confirmed the 61-year-old had been arrested.
Photos from Monday night show officers in tactical kit at the door of a building, and fire crews, some wearing breathing apparatus, with equipment laid out in the street nearby.


Chief Superintendent Jason Rees calls it ‘a deeply distressing incident’
Chief Superintendent Jason Rees said: “A man is now in custody following a significant policing operation in Ger-y-nant overnight.”
“This is a deeply distressing incident, and our thoughts are with the victim’s family, and everyone affected.”
He said: “We thank the local community for their support, which has resulted in an arrest with no further injuries sustained.”
“We thank those displaced from their homes overnight for their co-operation at a worrying time as we support them in returning home. We thank the local community for their co-operation as our investigation continues.”
South Wales Police is asking anyone with information about the incident, or who captured footage, to contact the force through its website, quoting reference 2600342470.
Discover more from Swansea Bay News
Subscribe to get the latest posts sent to your email.
