The man, whose name was not released by police, fell some 100 meters from the top of the capital’s City Hall tower just before 10 am.
“I first though it was not a person,” said Nathalie Noori, who saw the fall while on her morning walk. “I thought it was just a doll, but later I understood that it must have been a person,” she told Aftonbladet.
Police responded soon after, clearing the area around the building. The man died on impact.
“The 28-year-old has had contact with a psychiatric hospital, said Peter Granquist, police spokesman, to Expressen. “We consider this a suicide.”
City Hall manager Håkan Andersson told Expressen that he could not explain how the death could have happened, but said the incident would be investigated.
“We are going to review security in the tower so that this doesn’t happen again,” he said.