Oslo police probe explosion at U.S. embassy consular entrance, no injuries

Oslo police are investigating an explosion at the public entrance to the consular section of the U.S. Embassy in the Morgedalsvegen district, roughly 7 kilometres from the city centre, after residents reported a loud blast at about 1 a.m. No injuries were reported and damage to the entrance was described as minor, but witnesses and images showed shattered glass, cracks in a thick glass door and black marks on the ground near the entryway.

Police sealed off the area and deployed what authorities described as substantial resources, including police dogs, drones and a helicopter, as officers and forensic technicians examined the scene. Two police technicians in white overalls were seen working at the site while investigators searched for one or more potential perpetrators; police later said no further explosive devices had been found and declared the area safe for residents and passersby several hours after the blast. Authorities asked the public to report any tips or unusual observations from the area between midnight and 2:00 a.m.

Oslo police commander Michael Dellemyr said the blast occurred at the public entrance and stressed the investigation was at an early stage, telling a broadcaster, "it is very early in the investigation" and that police "will not comment on anything related to the type of damage, what it is that has exploded and similar details, beyond the fact that there has been an explosion." He later said police "have an idea of the cause," adding, "It appears to us that this is an act carried out by someone." Police also described the incident as appearing to be a "targeted attack," while saying a motive remained unclear as of Sunday morning.

The Norwegian Police Security Service, PST, confirmed it had called in additional personnel to assist, while its communication adviser Martin Bernsen said PST had taken no decision to change the country's official threat level, noting there had been "no change" to the threat assessment level, which has been at three on a five-point scale since November 2024. Bernsen declined to disclose whether any threats had been made against U.S. interests in Norway prior to the explosion.

Eyewitness accounts captured the alarm felt in the neighbourhood. "There was a very thick layer of smoke on the street," said 18-year-old Sebastian Toerstad, who drove past the embassy at the time and noted "There was some damage to the entrance." A 16-year-old identified as Edvard recalled, "My mother and I first thought it came from our house so we looked around a little, but then we saw the flashing lights outside the window and a ton of police."

Though there were no physical injuries, the blast carries immediate public health and community implications. Smoke, shattered glass and the shock of an explosion raise short-term risks for respiratory irritation and psychological distress, particularly among immigrant, refugee and visitor populations who rely on consular services and may face language barriers or precarious legal situations when services are disrupted. Local clinics and municipal health services should be prepared to offer low-barrier crisis counseling and outreach to affected communities, while authorities should ensure consular disruptions do not impede access to urgent documentation or asylum processes.

The U.S. Embassy referred media queries to the U.S. State Department, which had not provided an immediate comment. Oslo police said the case was being treated with high priority and urged anyone with information to come forward as investigators continue forensic work and inquiries into motive and responsibility.