Serious crash near Woodend

A person is in a serious condition after a crash on State Highway 1 near Woodend.

The Christchurch Transport Operations Centre said Main North Rd, Woodend, north of Pa Rd is closed to traffic.

Traffic is being detoured via Pa Rd, Greens Rd and Te Pouapatuki Rd – and reverse for southbound traffic.

Motorists are advised to expect delays.