— It is unclear what caused it all, but they have shown symptoms that indicate carbon monoxide poisoning. It is possible that one of them may have passed out but everyone involved was awake and talking when we got there, says the police spokesperson Evelina Åström.
The police assisted the emergency services in transporting the victims to hospital. The carbon monoxide is suspected to have come from some kind of oven.
– We have drawn up a report of causing bodily harm, but no one has been served with suspicion, says Åström.