According the Alpine F1 team, Fernando Alonso has been taken to hospital after a cycling accident involving a car. According to the BBC, Alonso may have suffered a fractured jaw in the incident in Switzerland near his home. Here is the release from Alpine:
Alpine F1 Team can confirm that Fernando Alonso has been involved in a road accident while cycling in Switzerland.
Fernando is conscious and well in himself and is awaiting further medical examinations tomorrow morning.
Alpine F1 Team will not make any further statement at this point in time. Further updates will be given tomorrow.