Police say his condition is serious but stable. According to Håkan Westin, chief officer at the Stockholm Police County Response Centre, the assault took place on the seventh floor of a block of flats in Magnus Ladulåsgatan.
“A man with a knife in his hand was arrested on the stairs,” he said. “We don’t know whether the attack was planned. We have a team on the scene and are interviewing witnesses. But in nine cases out of ten the victim and the perpetrator are known to each other,” he added.