Fire crews are attending an incident at Bluff Highway following reports of a transformer on fire.
A Fire and Emergency New Zealand spokesman said firefighters were alerted to the blaze near the McGorlick St intersection about 1.30pm.
One fire appliance from Bluff attended where a 40m by 60m vegetation fire was discovered, he said.
"Two low pressure deliveries were sent out and they requested one pump from Invercargill.''
Fire crews later confirmed it was not a transformer on fire, but there could be a link between the vegetation blaze and a power source.
No structures were involved in the fire, nor were there any injuries.