The Swedish newspaper Expressen reports, citing the police, that seven people were injured in an explosion that broke out on Tuesday, August 15 during repairs in the territory of one of the factories in the area of ??Trongsund in southern Stockholm.
Police spokesman Anders Brungelsson told the publication: "One person was burned and taken to the hospital, two were injured because of smoke - also taken to the hospital".
Police also reported at least four victims of smoke.
It is assumed that the cause of the explosion could be metal dust.
Swedish television SVT Brungelsson explained: "For some unknown reason, the chip scraper exploded, a lot of smoke was generated".