In central Sweden, the driver of a car was taken to Eskilstuna Hospital in serious condition after a collision with a minibus near Vingåker at the Hansta exit on route 52. The driver of the minibus was also taken to hospital to be treated for minor injuries.
A man was also hospitalized in eastern Sweden after his car veered into the ditch and somersaulted off the E4 south of Nyköping, local newspaper Södermanlands Nyheter reports.
Earlier in the morning, seven cars were involved in a pile-up on route 40 near Bollebygd in the south-west of the country. The cause of the accident and extent of possible injuries are as yet unknown.
Police in Västerås in central Sweden said road conditions in the area were treacherous, but added that none of the numerous accidents in the area had resulted in injury.
Seven vehicles were involved in an accident in the town centre, while a car and a truck both slid off the road into a fence on the E18 motorway outside Västerås.
Several accidents were also recorded in the greater Stockholm area, particularly around Södertälje where road conditions were especially icy. At least two vehicles were overturned after ending up in a ditch off the E20 motorway.
A number of other vehicles have also glided off the road in the area as VägAssistans ('Road Assistance') teams rush out to lay salt on the slippery surfaces.
A truck driver is being treated at Karolinska University Hospital after being hurled out of his vehicle when it rolled over near the Löttinge tunnel north of the capital at around 6am.