The Waikato Expressway near Whangamarino, between the Rodda Road on-ramp and the Hampton Downs off-ramp, has now reopened after the earlier serious crash. 

Emergency services are at the scene of a serious single-vehicle crash on the Waikato Expressway near Whangamarino, northbound, between the Rodda Road on-ramp and the Hampton Downs off-ramp.… More

Motorists are urged to drive with caution, with ice causing delays and a crash on SH 5.