The accident involved two cars and a motorhome, according to the South-East Police District. Operations leader Espen Reite told NRK Vestfold og Telemark that one of the cars appears to have crossed into the oncoming lane. The cause of the lane crossing has not been determined.
The conditions of the injured have not been disclosed, and it is unclear whether any charges have been filed.
Two cars and a motorhome are involved, and it appears that one of the cars has crossed into the oncoming lane.