Mass killer Anders Behring Breivik must remain in pre-trial detention for eight weeks, four of them in solitary confinement, a Norwegian court has ruled.
Judge Anne Margrethe Lund announced the decision after a closed hearing in Oslo on Monday attended by the 32-year-old right-wing extremist.
The ruling means police can continue to hold Breivik in custody until November 14 when a new detention hearing will be held.
The judge said he could be held in isolation until October 17.
Breivik has confessed to the bombing in central Oslo and shooting massacre at a youth camp on Utoya island.
Seventy-seven people died in the attacks.