Two women in their 50s have died after being "subjected to violence" at a secondary school in the southern Swedish city of Malmö, police say, BBC reports.
An 18-year-old man, who is a student at the school, has been arrested on suspicion of murder, officers say.
It was not immediately clear what happened but police said there had been no reports of gunfire.
The two women, who worked at the school, were taken to hospital by ambulance but could not be saved.
The alleged attacker was armed with a knife and an axe, according to Swedish media outlets. He is said to have called the emergency number and admitted to having killed two people.