The first of the country's new police red light cameras are going live today.

Three cameras have been set up - two in Auckland, one in Wellington.

They use radar technology to detect red light runners, and overseas have been linked with significant reduction in injury crashes.

They're at high risk intersections - Karo Drive and Victoria Street in Wellington, Te Irirangi and Ti Rakau drives in Botany, and the Lambie Drive Interchange in Manukau.

Drivers caught face a fine of $150, which goes straight to the Government.