Heavy rainfall has caused significant damage in South Wairarapa, New Zealand, following a previous deluge, and also in Chungcheong and North Jeolla provinces in South Korea.

Roading crews in South Wairarapa anticipate that clearing large slips along White Rock Road will take more than a week to complete.

The South Wairarapa District Council is appealing to the community to report suspicious vehicles after large quantities of bitumen were illegally dumped in the area, showing a "complete lack of respect."

All bridges leading into Martinborough in South Wairarapa have been closed as river levels rise, putting local farmers on high alert for impending heavy rainfall.

Emergency response crews are working to deliver essential aid to communities in South Wairarapa that have been cut off. Convoys are being used to supply these isolated areas.

MetService has issued a severe thunderstorm warning for areas including Carterton, Kapiti Coast, Upper Hutt City, Porirua City, and South Wairarapa, anticipating torrential rain.

MetService is likely to upgrade its rain watch for Wairarapa, as rainfall peaked at 70mm in South Wairarapa and Wellington, with more precipitation expected.

A section of the Tūranganui River bridge south of Martinborough in South Wairarapa has been washed away by flooding, restricting access to approximately 460 homes.