A multi-vehicle collision occurred on the E18 highway northbound near Åskrysset in Tønsberg, Norway, causing significant traffic congestion. The incident involved a vehicle impacting cars in both lanes of the same direction, but authorities report no serious injuries. Traffic is heavily backed up due to the accident and a pre-existing closure of the Gulli environmental tunnel, which sustained damage earlier in the day. Authorities have implemented a detour via Undrumsdalskrysset. The Åskrysset overpass is currently being utilized to divert traffic around the accident site. Recovery services are en route to clear the vehicles and reopen the roadway. The low speed of the impact is attributed to the already congested traffic conditions.