A firefighter has been treated for heat exhaustion while battling a huge house blaze in Nelson early this morning.
Up to 10 appliances from around the area were called to the incident on Tahunanui Drive just after 2am after authorities received multiple calls.
A photo shared online by the local fire crew showed the enormity of the situation - with huge flames licking up the side and roof of the house.
Big plumes of smoke can also be seen despite the darkness.