Firefighter dies after battling factory blaze

"The thoughts of QFES are with Izzy's family, friends and crew members," the organisation said on Twitter.

A second firefighter was taken to the Royal Brisbane and Women's Hospital with serious injuries on Tuesday after paramedics were called to the Slacks Creek blaze about 2.30am.

Safety teams wearing breathing apparatus were involved in the firefighters' rescue, which took place during the hottest part of the battle against the blaze, QFES Deputy Commissioner Michael Wassing said.

"It is very rare that our firefighters are injured in this way and that's because of the enormity of the training and the professionalism of our firefighters," he said.

The fire was contained just after 6am on Tuesday and police declared a crime scene as they worked to determine the cause of the blaze.

Officers checked the surrounding area for CCTV and business owners were interviewed by investigators.