Subway services in Oslo have partially resumed after being completely halted on Saturday afternoon due to smoke development in the tunnel between Carl Berner and Tøyen subway stations. This disruption led Ruter, the public transport authority, to suspend all subway operations to ensure passenger safety.

Upon resumption of service, passengers have been warned by Ruter that they should anticipate significant delays even as some lines are now operational once again. The situation highlights the ongoing challenges of urban transportation networks in managing emergencies and maintenance issues, which can have widespread impacts on commuters in the city.

The incident serves as a reminder of the essential role that public transport plays in the daily lives of Oslo residents, and the necessary precautions authorities take during unexpected situations. While service interruptions can be disruptive, Ruter's prompt response to the emergency suggests a commitment to safety and efficient resolution of transit issues.