An explosion was reported at the U.S. Embassy in Oslo, Norway, prompting a large police response and the closure of surrounding streets, according to Norwegian authorities.
Oslo police said the blast occurred near the embassy compound and caused damage in the immediate area.
Officials said emergency services were dispatched quickly, and investigators are working to determine the cause of the explosion.
Authorities have not immediately confirmed casualties or whether the incident was intentional. Security forces established a cordon around the site while bomb technicians and investigators began examining the scene.
The U.S. Embassy has not yet issued a detailed statement, and Norwegian officials said the situation remains under investigation as police continue gathering information about the explosion.