Norway's security service says a deadly bow and arrow attack which left five people dead on Wednesday appears to have been an act of terror.
However, a motive has not yet been determined.
The suspect, a 37-year-old Danish citizen named Espen Andersen Brathen, had converted to Islam and there were fears he had been radicalised.
He is accused of killing four women and a man - aged 50 to 70 years - in the southern town of Kongsberg.
Brathen is due to appear in court on Friday.
Flags were flown at half-mast in Norway today (Thursday).