A large landslide occurred between two apartment buildings at Carl Berner in Oslo on Sunday afternoon. Between 300 and 400 residents were evacuated from their homes.
Police operations leader Thomas Broberg said the situation remains dangerous. "Large masses of rock and soil could still slide down," he explained. "There is risk the building could collapse."
Geologists estimate some of the unstable rock formations weigh dozens of tons. Initial assessments were conducted Sunday evening, but officials decided to maintain evacuations overnight.
New and more thorough investigations will begin Monday morning. "They are waiting for daylight," said operations leader Øyvind Hammervold. "No specific time has been set, but they will enter the area during morning hours."
Police maintained watch throughout the night to ensure safety barriers remained in place. They will continue monitoring through Monday. No new landslides have been detected since the initial incident.
Authorities are continuously evaluating whether to evacuate additional buildings, though no further evacuations are currently planned.
The landslide has not affected public transportation. The subway tunnel running beneath the affected area shows no damage, and trains are operating normally. Gjøvikbanen railway service also remains unaffected as it runs further uphill from the landslide site.
This incident highlights the geological challenges facing construction in Oslo's hilly terrain, where unstable ground conditions can pose sudden risks to residential areas.