Long delays out of Auckland

Holiday makers heading north of Auckland this afternoon are being warned of long delays out of the city.

Inspector Lou Alofa, duty operations manager northern communications centre, said there was significant congestion at the Puhoi Tunnel for traffic travelling in both directions.

"There hasn't been an accident and we aren't sure why there is congestion but we are monitoring it," he said."We are warning people to be careful and to watch their following distances."

Fairfax Media