A fire has broken out in an apartment building in Gävle, Sweden, according to the Gästrike rescue service. The fire is reportedly spreading through the building’s ventilation system, posing a challenge to firefighters. Details regarding the origin of the fire and the extent of the damage are currently limited. Emergency services are on scene actively working to contain the blaze and evacuate residents. No information about injuries has been released at this time. Authorities are investigating the cause of the fire once it is under control. The situation remains ongoing, and further updates will be provided as they become available.