Norway has been warned of an imminent terror attack, the country's justice minister has announced.
Norwegian people have been given no specific advice other than to stay vigilant, the Dagbladet newspaper reported.
The paper's headline said "Islamic extremists" were planning an attack in the coming days.
Yesterday was the three-year anniversary of the bombing and mass shooting in Oslo and Utoya which left 77 people dead.
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He has asked his followers for help in tracking the man down.
The president said it was a “very sad day for journalism”.
A summit has been pencilled in for February following last year’s icebreaker in Singapore.