An 89-year-old Norwegian who died last week published his own death note in a local paper, warning readers that "the next one may well be you".
Oil sludge sent from Norway to be burnt in a Swedish incinerator was found to be radioactive and contain high levels of radium, according to an investigation by Sweden's public broadcaster SVT.
A 19-year-old Norwegian high school student who posted a message on Facebook to demonstrate the dangers of internet virality saw it spread to more than 30,000 people over four continents and get more than 27,000 comments in less than 23 hours.
An 18-year-old Norwegian has been arrested at Landvetter Airport just outside Gothenburg. He is suspected of planning to join the extremist group Isis (also known as IS) in Syria.