Emergency services were called to a crash on Caldicot Road in Caldicot at around 10.15am on Friday after a pedestrian was hit by a lorry.
Gwent Police said officers attended the scene along with paramedics from the Welsh Ambulance Service. The crash involved a pedestrian and a lorry.
Serious injuries reported
The pedestrian was taken to hospital with serious injuries, Gwent Police said.
No arrests have been made in connection with the crash.
