Traffic has backed up on State Highway One north of Auckland between Warkworth and Orewa this afternoon after a serious crash.
SH1 has been reduced to one lane at Puhoi.
Police and other emergency services are now at the scene after the head-on collision between two cars on Hungry Creek Rd at about 4.30pm.
Two men have been taken to hospital. Police said one man was in a serious condition.
The road was closed so the Fire Service could free the trapped men, but one lane has now been opened as the Serious Crash Unit examines the scene.
