The head of the police investigation did not immediately give details of what aspects have come up that would give cause to suspect a crime.
One person was killed in the explosion.
The article is more than 15 years old
Occupational Safety Violation Suspected in Oulu Explosion
An explosion at the Arizona Chemicals plant in Oulu on Wednesday has led to suspicions of violations of occupational safety laws. Police are also investigating the possibility that involuntary manslaughter and infliction of bodily harm.
