A fully laden logging truck has rolled trapping the driver on a private forestry road in Northland.

Police confirmed the truck crashed on Ruapehu Rd in a forestry block about 30km north-west of Dargaville at 12.10pm today.

Volunteer firefighters from Dargaville Station were called to the scene to help with the extraction of a trapped person.

The injured person was believed to have moderate injuries.