The police have carried out a technical investigation on the spot and made some seizures.
- We have heard some people in connection with the incident, says Tobias Ahlén, press spokesperson for the police.
It was during Tuesday morning that the police were alerted to a knife cutting at Resecentrum in Central Västerås.
One person was seriously injured and taken to hospital.
According to the police, the man's injury situation is serious but not life-threatening.
The police have not been able to hear him yet
- We will do it as soon as possible, says Tobias Ahlén, press spokesperson at Police Region Central.