Three brothers have been arrested for the bombing of the U.S. Embassy in Norway, an alleged attack in which no one was injured.
The brothers were taken into custody in Oslo and are Norwegian citizens of Iraqi origin in their 20s, authorities said Wednesday, Reuters reported.
"They are suspected of a terror bombing," Police Attorney Christian Hatlo told reporters.
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"We believe they detonated a powerful bomb at the U.S. embassy with the intention of taking lives or causing significant damage," he added.
The bomb, an improvised explosive device (IED), went off Sunday and damaged the entrance to the embassy's consular section.
Investigators were still trying to determine a motive for that attack, one of which would be an act of terrorism, authorities said.
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"We believe they detonated a powerful bomb at the U.S. embassy with the intention of taking lives or causing significant damage," Hatlo said.
Authorities believe one of the men planted the bomb while the two others took part in the plot, Hatlo said.
Police have reinforced security measures and have increased their presence around the embassy.
American embassies have been placed on high alert amid the ongoing U.S.-Israeli strikes against Iran.
