The Swedish Security Service's (Säpo) headquarters in Solna was evacuated due to a suspected gas leak, affecting around 500 individuals.

Residents in the vicinity were advised to close their windows as a precaution.

Emergency services, including police and fire departments, responded to reports of an unknown odor, speculated to be paint-like, within the building.

Region Stockholm has escalated to a state of emergency, deploying several healthcare resources to the scene.

The cause of the suspected leak remains unclear, and authorities are investigating.