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File photo of Norway's defence minister Ine Eriksen Soereide in Germany

Norway's defence minister Ine Eriksen Soereidegreets a Norwegian soldier during a visit to the Very High Readiness Joint Task Force (VJTF) unit in Muenster, Germany, June 22, 2015. REUTERS/Wolfgang Rattay/Files

Explosion, gunman attacks rock Norway

A powerful explosion rocked a government building in central Oslo on Friday