The crash occurred just after 2am on the night between Saturday and Sunday in Ängesbyn, just north of Luleå in northern Sweden, reported local newspaper Norrländska Socialdemokraten.
In the car with the young girl were a friend of hers, her younger brother, and the brother’s friend. In the car they collided with were five 18-year-olds.
All nine were taken to nearby Sunderbyns Hospital, reported Norrländska Socialdemokraten, none with severe injuries.
There is no evidence to suggest that the underaged joyriders were under the influence of alcohol. The police have spoken to the 13-year-old’s parents.
“They said that they were at home, and that the car keys were hidden in the garage. They’d gone to bed, and somehow the girl and her friend got hold of the keys,” said Erik Kummu, duty officer at the Luleå police, to daily newspaper Dagens Nyheter.
“The whole thing is somewhat unbelievable,” he added.
The police don’t know what caused the crash. All parents to the children and teenagers involved have come to the hospital, and local social services also paid the hospital a visit.
The 13 year-old girl has told police that this was her first time driving a car, reported newspaper Aftonbladet.