A mother and child survived after they were thrown from an SUV that slammed into a guardrail and spun violently across a highway in China.

Dashcam video shows the driver suddenly swerving to avoid a plastic board on the Nanjing Ring Expressway, sending the vehicle out of control.

Police say the father and son in the front were wearing seatbelts and escaped injury. The mother and child in the back were not buckled in and were ejected through the rear window.