It happened at around 9.25pm on Wednesday 7 March 2018 and involved three vehicles – a black Ford Focus, a black Vauxhall Corsa and a green Volkswagen Bora that were believed to be travelling from Thirsk to Busby Stoop.
Two boys, believed to be 17 years-old, sadly died at the scene. A further five people and two children have been taken to hospital.
Police enquiries are ongoing into the incident and officers are appealing for witnesses to come forward to assist the investigation.
In particular, anyone who witnessed the collision or who was travelling in the area at the time with dashboard cameras in operation prior to the collision is urged to contact them.
If you can help, please call North Yorkshire Police on 101, select option 2, and ask for the Major Collision Investigation Team or email MCIT@northyorkshire.pnn.police.uk
Please quote reference number 12180039673 when providing details about this incident.
The stretch of road was closed to allow emergency services to respond to the incident, it re-opened at 4.45am today.
Police are not in a position to name the deceased at this stage.