TVNZ's Channel 1 briefly dropped off the air this evening after a fire alarm sounded in the building, forcing staff to leave the building.
1NEWS Tonight presenter Greg Boyed was reading a late-night news item about the recent car bombing in Afghanistan when he was interrupted around 11pm.
"We have a fire alarm so we'll be back very shortly," he said before cutting to an ad break.
The channel then briefly cut to a broadcast error message, complete with an image of the iconic Goodnight Kiwi.
Northern fire service shift manager Jaron Phillips said the alarm was set off by a short circuit in the electrical switch room.
Power has been isolated and two fire crews are on the scene, he said. The building has been evacuated.