Several accidents have occurred on the E6 north of Halmstad, the police write on their website.
According to Hallandsposten, it involves five vehicles, a truck and four cars.
There are several vehicles at different locations. They have driven into the guardrails, one is standing out in the field, says Peter Karlborg, duty officer at the rescue service, to the newspaper.
One person has been taken to hospital by ambulance. The extent of the injuries is not known.
The road was initially completely closed in the northbound direction, but has been open since 7 am.
According to the police, the road has been very slippery.