OSLO, Norway — A loud explosion struck the U.S. Embassy compound early on Sunday morning of March 8, 2026, causing minor damage but no reported injuries, police and local authorities said. The blast was heard at around 1 a.m. local time (0000 GMT) in the Huseby district of western Oslo, with thick smoke rising near the embassy’s consular entrance, witnesses reported.

Norwegian police launched a major response to the scene, deploying officers, police dogs, drones and a helicopter to secure the area and investigate the incident. Officials said they are in contact with embassy representatives and are working to determine what caused the explosion and identify any suspects.

Authorities confirmed no injuries and said the damage appears limited, although the exact cause of the blast remains under investigation. Officers conducted searches for additional explosive devices in the vicinity but have found none so far.

Witnesses described a “very thick layer of smoke on the street,” and minor damage to the entryway was visible. Police temporarily cordoned off the area to facilitate the investigation and ensure public safety.

The Norwegian Justice Minister condemned the incident as a serious security concern but emphasized that there is currently no indication of further threats. Officials have encouraged the public to remain calm while inquiries continue.

Both the U.S. Embassy and the U.S. State Department had not issued immediate comments on the explosion at the time of reporting.

Investigators are examining available footage, witness accounts and physical evidence to establish the sequence of events and whether the blast was deliberate or accidental. Police have not released information on any potential suspects.

The incident comes amid heightened global tensions, and embassy compounds are considered high security sites. Authorities in Oslo confirmed they are taking the situation seriously and continue to investigate as more details emerge.