On 11 December 2010, two bombs exploded in central Stockholm, killing the bomber. Swedish Minister for Foreign Affairs Carl Bildt and the Swedish Security Service (SÄPO) described the bombings as acts of terrorism. Taimour Abdulwahab al-Abdaly, an Iraqi-born Swedish citizen, is suspected of carrying out the bombing. According to investigations by FBI, the bombing would likely have killed between 30 and 40 people had it succeeded, and it is thought that al-Abdaly operated with a network. Europol categorized the attack as Islamist terrorism. Bombings.
https://en.wikipedia.org/wiki/2010_Stockholm_bombings