Gardai are investigating an industrial fire in Tallaght Village.
The alarm was raised at around 9 o'clock last night.
Witnesses called the emergency services after seeing smoke coming from a building in Tallaght Retail Centre.
Dublin Fire Brigade says their crews faced very heavy smoke when they arrived on the scene.
Four units managed to bring the blaze under control within 90 minutes.
Firefighters say there were several pockets of the building on fire which could suggest foul play.
Nobody was injured and Gardai are now investigating.
