1News' 6pm news bulletin was delayed this evening delayed after TVNZ's Auckland newsroom was evacuated - half an hour before the bulletin was due to start.

Fire engines are at the Hobson Street building, but it is not known if there is a fire.

Staff were seen outside huddling under umbrellas.

At 6:20pm staff were allowed back into the building but emergency services remain at the scene and part of the road is still cordoned off.

The bulletin started half an hour late with host Greg Boyed mentioning the evacuation.

Victoria Street West in Central Auckland is currently closed between Hobson Street and Nelson Street.

Fire service and Police deal with an incident at TVNZ. Photo / Michael Craig

Both the producer and presenter of the 6pm bulletin were understood to be among staff members gathered across the road.

TVNZ spokeswoman Georgie Hills confirmed staff had been evacuated about 5.30pm.

She said while there was smoke, there were no indications of fire.

She apologised to viewers about the delay in the news.

Six fire engines are at the TVNZ building, near the Sky Tower. Photo / NZME