Norwegian extremist Anders Behring Breivik, who has confessed to twin attacks in July that killed 77 people, will be allowed out of solitary confinement as he awaits trial, police said on Thursday.
He will however be kept apart from other inmates for security reasons and will have no access to media or visits, police prosecutor Christian Hatlo told reporters.
"We will not extend the solitary confinement beyond October 17," Hatlo said.
Behring Breivik, 32, will leave solitary confinement on Tuesday but will remain in custody until at least November 14, when a judge is expected to announce whether or not to extend his custody further.
At a custody hearing in Oslo's district court in August, Behring Breivik protested against his solitary confinement, calling it a form of "torture."
He has admitted setting off a car bomb outside the government offices in Oslo on July 22 before going on a shooting rampage on the nearby island of Utoeya where the ruling Labour Party's youth wing was hosting a summer camp.
Sixty-nine people, mostly young, died in the island massacre and eight in the bombing.
In a manifesto he published on the Internet just before the attacks, Behring Breivik professed his hatred for Western-style democracy, saying it had spawned the multicultural society he loathed.