A large slip is blocking the southbound lane of the Thames Coast Road.

The slip is described as being on the section of road near Whakatete and Ngarimu Bays, says a statement from police.

"Contractors will be working to clear the slip however the road is likely to be closed for a number of hours, possibly until midday.

"Traffic management is currently in place and motorists are thanked for their patience."

The NZTA says there are several worksites operating in the damage zone using stop/go or temporary traffic lights.

"Motorists should avoid the area or expect delays with traffic control and/or speed restrictions at all worksites."

Meanwhile, motorists travelling on State Highway 5 (Napier-Taupo Road) and State Highway 2 (Napier-Wairoa Road) are urged to take care this morning due to a number of slips on both roads.

There have also been slips on State Highway 2 north of Gisborne and roads are down to one lane in some spots.

Please exercise caution if travelling on these roads and be prepared to take things slowly, says NZTA.