NEW : British police execute search warrant in connection with Swedish investigation . In a message posted on Twitter Saturday , Swedish Foreign Minister Carl Bildt said , `` Most worrying attempt at terrorist attack in crowded part of central Stockholm . Prime Minister Fredrik Reinfeldt defended Swedish society in the face of the attack . One person died , and two people were injured in the explosions . Police said they received an e - mail shortly before the attack .
NEW : British police execute search warrant in connection with Swedish investigation . Prime Minister Fredrik Reinfeldt defended Swedish society in the face of the attack . One person died , and two people were injured in the explosions . Police said they received an e - mail shortly before the attack .