At least ten people have been killed in a school shooting in the central Swedish city of Örebro on Tuesday, according to authorities. Swedish police said they believe the suspect — a man — to be among the dead. They said the perpetrator acted alone but added the investigation was still in its early stages.

The Orebro Police spokesperson confirmed that a major operation is underway at a school in Västhaga in Örebro and four people have been shot in the shooting.