The Skien train tunnel in Norway has been found to have cracks, prompting officials to implement necessary safety measures. The tunnel will be closed from 11:55 PM on March 6 until 2:00 AM on March 9 to ensure the safety of train services. Bane Nor, the infrastructure manager, indicated that the identified cracks could potentially result in rockfalls if not addressed promptly.

According to line manager Bjørn Ståle Varnes, train operations are considered safe up until the closure, as measures have been taken to reduce train speeds and conduct daily inspections to monitor the tunnel's condition. Despite the existing issues, Varnes assures commuters that it is currently safe to travel by train, with steps being taken to mitigate future risks.

During the closure, bus services will replace train services between Porsgrunn and Skien to maintain transport links for passengers. The proactive measures taken by Bane Nor underline the commitment to infrastructure safety and the importance of immediate action in addressing potential hazards in transportation networks.