A large brawl, involving around 15 young men, broke out on Monday evening in Haninge outside Stockholm.
When we arrived at the scene, several people ran away and some of them threw knives on the way, says police spokesperson Anna Westberg.
Two people have been taken to hospital, but their condition is unclear.
Eight people have been arrested for the incident, which is being investigated as assault, among other things.
During the evening, the police carried out an operation involving, among other things, a helicopter.
We have seized certain objects and are conducting interviews on the spot, says Anna Westberg.