No one was inside the 1,000-square-metre building owned by Hietakari Group when the fire broke out and no one was injured.
Rescue and emergency teams arrived at the scene at around 4:00 am and extinguished the blaze in about an hour.
Residents in the area were advised to shut ventilation as a precaution.
Kristian Lahti, CEO of Hietakari Group estimates the damages at one million euros. Lahti says the fire is suspected to have originated from an electrical switchboard.
The police are investigating the cause of the fire.
