The northbound lane of the Christchurch Northern Motorway, on Waimakariri Bridge, is blocked following a mud spill this afternoon.

Police were called to the spill around 3.40pm.

Hawke's Bay Expressway/State Highway 2, Napier, is currently blocked in both directions following a crash this afternoon.

Emergency services are at the scene of a serious crash at the intersection of Buckland Road and Massey Road in Māngere.