The road was shut following reports of a crash near Junction 27 of the A55 near Penmaenmawr, with unconfirmed reports indicating the incident involved a car and a HGV. Crews from North Wales Police and North Wales Fire and Rescue Service and four air ambulance helicopters attended the scene. Wales Air Ambulance said critical care support was provided, and further support was given by four off-duty paramedics. Three people were taken to hospital for treatment, with at least one being transferred to the Aintree University Hospital in Liverpool. "Advanced critical care support was delivered by the Emergency Medical Retrieval and Transfer Service in three Wales Air Ambulance charity helicopters.