RAC Rescue has been sent to a car crash on Northam-York Road, near the intersection of Buckingham Road, in York.
Volunteer Fire and Rescue Service firefighters are at the scene and are working to free the person who is trapped.
More information will be released when known.
The RAC Rescue helicopters are sponsored by RAC, funded by the State Government and managed by the Department of Fire and Emergency Services (DFES).