Police arrested two men after disorder and violence in a stairwell in Bandhagen, Stockholm, Polisen said.
Officers were called to Sjösavägen after reports of noise and commotion in a stairwell. At the scene, they found a man in his 35s who was bleeding.
The man received help from an ambulance crew. His injuries were not life-threatening, police said.
The two other men found at the scene were arrested. The incident is initially classified as attempted murder.