As the mercury hit 40 degrees, firefighters from the Rural Fire Service and National Parks and Wildlife fought to bring a bush fire under control on Munro Island near Lawrence over the weekend.
The bush fire started shortly after 10am in the Munro Island Nature Reserve.
The reserve covers the entirety of Munro Island and is close to 30 hectares in size.
No properties were threatened by the blaze which burned one hectare of the reserve and the cause of the fire was unknown at the time of publication.
The bush fire occurred during a total fire ban across parts of NSW, including the Clarence Valley, Ballina, Lismore and Kyogle.
Residents are urged to follow the rules enforced by a total fire ban, including no lighting, maintaining or using a fire in the open and limiting activities such as welding or grinding, which may cause sparks, to a protected or enclosed area.
All fire permits are suspended and residents are urged to report fires to triple-0.