Police in Norway have closed a secondary school near Oslo after a video warning of a massacre was discovered on the Internet.
A 15-year-old male student at the Kjenn school, whose name has not been disclosed, has admitted posting the video clip on the YouTube video-sharing site.
The student has not been arrested and is not in police custody, but police are speaking with him.
The 50-second video, posted on YouTube on Saturday, was removed late last night.
With music playing in the background, it showed a picture of the school. Pictures of six teachers then popped up, as a voice said: 'It will happen one day, it will be a bloody machine, one day you will die.'
Police do not believe the student is in possession of weapons.
The Kjenn school, some 15km east of Oslo, has about 400 students aged 13 to 17.
A number of schools in the Nordic countries have been evacuated and closed due to threats since 7 November when 18-year-old Finnish student Pekka-Eric Auvinen killed eight people before turning his gun on himself at the Jokela High School north of Helsinki.
