Greendale Road, near Clintons Road, Darfield, is closed after a serious two-vehicle crash. 

Police were called to the scene about 5.55pm. 

Emergency services are at the scene of a serious two-vehicle crash on Johns Road, Northwood, Christchurch. 

Police were called about 4.15pm. 

Motorists on State Highway 5 are urged to drive with caution, with ice causing delays and two minor crashes.