A complete standstill on the E18 highway near Sandvika is impacting traffic on Sunday afternoon. An accident is the cause of the congestion, bringing all lanes to a halt. Authorities have yet to release details regarding the nature of the incident or any potential injuries. Motorists are advised to avoid the area if possible and expect significant delays. The extent of the disruption and estimated time for clearance remain unclear. Travelers should check traffic reports for alternative routes. Further updates will be provided as information becomes available.