Police did not provide details about what caused the blast, which occurred around 1am local time (midnight GMT) at the entrance to the embassy\u2019s consular section, saying only that an \u201cexplosive device\u201d had been used.<\/p>\n
Shattered glass could be seen in the snow outside the entrance, as well as cracks in a thick glass door, overhead lamps dangling from wiring, and black marks on the ground at the foot of the door, presumably from an explosion.<\/p>\n
![\"The](\"https:\/\/www.europesays.com\/dk\/wp-content\/uploads\/2026\/03\/f293ba79b4b313a2289384b433470a48.jpeg\"\/)
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The cracked glass door at the front of the embassy – Fredrik Varfjell<\/p>\n
\u201cOne of the hypotheses is that it is an act of terrorism,\u201d Frode Larsen, the head of the police\u2019s joint unit for investigation and intelligence, told NRK, the public broadcaster.<\/p>\n
\u201cBut we are not completely stuck on that. We have to be open to the possibility that there may be other causes behind what has happened,\u201d he said.<\/p>\n
Police were searching for the perpetrators but had \u201cno suspects\u201d yet, Mr Larsen told the press conference.<\/p>\n
US embassies have been placed on high alert in the Middle East over American military operations in Iran<\/a> and several have faced attacks as Tehran hits back at industrial and diplomatic targets.<\/p>\n Investigators in Oslo have not ruled out a possible link to the war. It was not immediately known what security the Oslo embassy had.<\/p>\n \u201cIt is natural to see this in connection with the current security policy situation,\u201d Mr Larsen said, adding that police had increased security at the scene after the attack.<\/p>\n \u2018An unacceptable attack\u2019<\/p>\n Espen Barth Eide, Norway\u2019s foreign minister, said he and Astri Aas-Hansen, the public security minister, had been in contact with Eric Meyer, the American embassy charge d\u2019affaires.<\/p>\n In a statement, they said this was \u201can unacceptable act that we take very seriously [and] the security of diplomatic missions is extremely important to us\u201d.<\/p>\n PST, the Norwegian security service, told the AFP news agency that it had called in extra staff to assist police with the investigation.<\/p>\n Martin Bernsen, the PST spokesman, stressed there had been \u201cno change\u201d to the threat assessment level in the Scandinavian country, which has been at three on a five-point scale since November 2024.<\/p>\n