According to the alarm call, which came in at 7 a.m. on Thursday, an object detonated in an employee's hand.
Rescue services, police and an ambulance were called to the scene.
"We have received an alarm about a minor explosion at a company. An employee has been affected and has contacted and spoken to SOS himself," says Christina Hallin, press spokesperson for the police.
There is no risk of further explosions or fires, according to the police, who are investigating the incident as a workplace accident.
