Major disruptions are affecting traffic on the S3 highway in Poland following a truck fire within one of its tunnels. Both tubes of the tunnel have been closed indefinitely as emergency services assess the damage and ensure structural integrity. The fire caused significant congestion, leading to kilometers-long queues for drivers. Authorities have not yet announced a timeframe for reopening the S3 tunnels, urging motorists to seek alternative routes. The cause of the truck fire is currently under investigation. This closure is creating substantial travel delays for those traveling on the S3 route within Poland. Further updates will be provided as they become available from Polish authorities.