A serious traffic accident occurred on the E18 near Arendal, involving a car with five occupants, including four children and one adult.

The vehicle veered off the road and collided with a tree, causing it to roll over.

One child sustained severe injuries and was airlifted to Ullevål Hospital in Oslo, while two other children were hospitalized with injuries.

The fourth child and the adult were taken to a local clinic for examination.

The accident led to the temporary closure of the eastbound lane of the E18, which has since reopened.

Police and accident investigators remain on the scene to gather evidence and understand the circumstances surrounding the crash.

The local crisis team has been alerted to support those affected by the incident.