What happened in Oslo?

-some crazy nutjob killed 80 kids on an islandsome crazy nutjob killed 80 kids on an islandThey seem to be reporting a gas explosion..



edit, just checked the coverage on sky, they are showing the site, it's a mess, but nothing obviously "car bombish" it looks like an explosion inside a large building which has blown the glass outwards.
Bomb Government building, numerous casualties, at least 10 dead.