Norwegian police are investigating a potential explosion outside the US Embassy in Oslo early Sunday, officials said.
No injuries were reported. Police received reports of a “loud bang” or explosion around 1 a.m., Oslo police said in a news release.
PST, the Norwegian police security service, called in additional personnel following the incident but has not changed the country's terror threat level, according to communication adviser Martin Bernsen.
The US Embassy in Oslo referred media queries to the US State Department, which did not immediately return a request for comment. Nor did Oslo police. Other details were not available.
