Norwegian authorities have launched a formal investigation into a possible explosive incident that occurred near the U.S. Embassy compound in Oslo during the early hours of Sunday. According to official statements from Oslo police, emergency services received multiple reports of a loud detonation-like sound approximately at 1:00 a.m. local time.
The Norwegian Police Security Service (PST) has responded by deploying additional security personnel to the scene as a precautionary measure. However, PST communication adviser Martin Bernsen confirmed that Norway’s national terrorism threat assessment remains unchanged following the incident. Preliminary assessments indicate no casualties or injuries resulting from the event.
Both the U.S. Embassy in Oslo and local law enforcement officials have declined to provide immediate commentary, directing media inquiries to the U.S. State Department. At present, specific details regarding the nature of the explosion or potential perpetrators remain undisclosed as the investigation continues. Security perimeter around the diplomatic facility has been reinforced while forensic experts examine the area for evidence.