Overview
- The collision occurred at 5:55 pm on June 3 on Williamfield Way in Newton Aycliffe.
 - The 23-year-old rider suffered fatal injuries and was pronounced dead at the scene.
 - A woman was arrested following the incident and remains in police custody.
 - North East Ambulance Service crews and a Great North Air Ambulance critical care team attended the crash site.
 - Durham police are urging residents to provide any dashcam footage or eyewitness information to support the ongoing investigation.