I don't think anyplace is immune anymore.

The blast comes as Norway grapples with a homegrown terror plot linked to al-Qaida. Two suspects are in jail awaiting charges.

Last week, a Norwegian prosecutor filed terror charges against an Iraqi-born cleric for threatening Norwegian politicians with death if he is deported from the Scandinavian country. The indictment centered on statements that Mullah Krekar — the founder of the Kurdish Islamist group Ansar al-Islam — made to various news media, including American network NBC.