An explosion occurred at the United States embassy in Oslo in the early hours of 08 March. The explosion, caused by an incendiary device, resulted in minor damage to the embassy’s entrance but no casualties. Norwegian police authorities have begun an investigation into the explosion. The motive for the attack is unclear, with authorities stating that they have not ruled out the possibility of it being a terrorist attack. Heightened security is expected to remain at the US embassy and surrounding areas until the investigation is complete.