At least three people have been swept away by floods in KwaZulu-Natal as heavy rains hit the province.

A search-and-rescue process in underway in New Hanover, where houses have been submerged in water and critical infrastructure damaged.

The South African Weather Service (SAWS) has issued a warning of more downpours.

The recent severe weather has brought panic in the New Hanover, as some people have had to evacuate their homes due to flooding.

KZN Cooperative Governance and Traditional Affairs (GOGTA) spokesperson Senzelwe Mzila said a search-and-rescue mission is underway.

"Disaster management teams are working around the clock to locate the missing [people]."

Residents have been warned to stay vigilant, as the weather warning remains in place.