A 17 year old male, who was the driver of a silver Peugeot car which collided with a signpost on Conway Road Llandudno, near the junction with Vicarage Avenue, at 23.05 on September 9 remains in a critical condition.
The drivers of three other vehicles suspected of travelling in convoy with the Peugeot have been arrested and are currently assisting officers with their enquiries.
Police are appealing for witnesses to the collision to contact officers from the western roads policing at Llandegai on 101 if in Wales, or 08456071001 (Welsh line) 08456071002 (English line).
