IBM Building in Brisbane Evacuated After Fire

Hundreds of office workers were evacuated from a Brisbane high-rise building after a fire broke out on Tuesday afternoon.

There were no injuries or people complaining of smoke inhalation from the blaze in Turbot Street's IBM building.

The fire started about 12:30pm on the 13th floor, causing smoke to billow from the building roof. Loud sirens rang out for about half an hour until the fire was brought under control.

"We evacuated the building and it took a small amount of time to discover the fire was in the ceiling space of the building," Queensland Fire Inspector Mark Welsh said.

"The sprinklers did activate in the building, which did help us extinguish the fire.

"I think it'll be more smoke damage and water damage than fire damage at this stage.""We're scaling down and doing a secondary search of the building to ensure everyone is out and nobody has been injured by the fire on the 13th floor.

The fire drew hundreds of CBD onlookers during lunch hour, with police shutting Upper Edward Street and carefully managing traffic along Turbot St.

At least a dozen fire trucks were called to the scene, along with ambulances.

An IBM spokeswoman said all of the company's staff were safe and accounted for.

While staff were told not to speak to the media, several said the evacuation was calm and orderly.

"The fire evacuation plan worked perfectly," one witness said.

The workers were expected to be sent home and may not be able to return on Wednesday.

A spokesman for Harburg Investments, the owner of the IBM building, said the fire was contained to the "plant room" on level 13.

"The building is safe," he said.

"No one's been injured and there's just a little bit of property damage on that floor."