Six people were injured and a man was arrested following two separate car smashes on the same day in Mexborough.
Police are appealing for witnesses to the crashes on Saturday which left two teenagers and a 29-year-old woman in hospital with serious injuries.
The first was at around 4.15am. A a silver Honda Civic mounted a kerb and collided with a building on Wath Road. Three people in the car, a 21-year-old woman and men aged 25 and 29, were taken to hospital with minor injuries.
A 29-year-old woman who was also in the car sustained serious injuries and was also taken to hospital. The 29-year-old man was arrested on suspicion of dangerous driving.
In a separate incident, at around 3.35pm a silver Ford Fiesta was travelling along Pastures Road in Mexborough, from the direction of High Melton. Just before the junction with Pastures Lane, the car collided with a stone wall before coming to rest in a field.
The 17-year-old male driver and a 15-year-old female passenger were taken to hospital with serious injuries.
A 17-year-old male passenger was also taken to hospital with minor injuries.
Pastures Road was closed for five hours following the crash.
South Yorkshire Police are asking for anyone with information, to call 101, or Crimestoppers on 0800555111, quoting incident number 683 of 23/11/2013 for the Pastures Road and 205 of 23/11/2013 for the Wath Road crash.