Police have cordoned off Valhallavägen, the street near where the crash happened.
Several people have reportedly been killed after a bus crashed into a bus shelter in the Swedish capital Stockholm.
The incident happened in the Ostermalm area at around 3 pm on Friday.
Police have cordoned off Valhallavägen, the street near where the crash happened.
Police said in a statement that there have been multiple casualties, but did not give precise numbers.
The bus was apparently not supposed to be in service at the time of the crash, national broadcaster SVT reported.
Mathias Häglund, the commanding officer of the rescue service, said only the driver was on board.
Police are treating the crash as "involuntary manslaughter" but are still investigating. It wasn't immediately clear what the cause was.
Swedish news agency TT said police confirmed that the driver had been detained and would be questioned to determine what happened.
The bus involved in the crash was a double-decker belonging to the company Transdev, SVT said.
Prime Minister Ulf Kristersson wrote on X he had "received the tragic news that several people have been killed and injured at a bus stop...People who were perhaps on their way home to family, friends, or a quiet evening at home."
He said that "we do not yet know the cause of this, but right now my thoughts are primarily with those who have been affected and their families."
This is a developing story and our journalists are working on further updates.