Police say a fire has started in a basement storage area at an address in Fornudden, Tyresö. The incident was reported on 14 September at 02:07. Officers were alerted after flames began in the cellar area of the property. Police have described the event as an arson matter (mordbrand) and are handling it as a criminal investigation. No further details about damage, how the fire started, or any suspects were provided in the available information. The case remains under police investigation, and the information released so far is limited to the initial report that the fire began in the basement premises.