Updated again, with this as additional news:
Quote:"Several people have been arrested ... some are Norwegian and others have a foreign background," Oslo assistant police chief Iver Stensrud told NRK television after a police raid in the Oslo area on Monday night.
He said police had recovered a 1915 Munch watercolor, "Blue Dress," and two lithographs -- a self-portrait and a portrait of Swedish playwright and novelist August Strindberg. It was unclear if they had been damaged, Stensrud said.
He said that it was impossible to say if the thieves were linked to those who stole "The Scream," showing a terrified waif-like figure under a blood-red sky, and "Madonna" from Oslo's Munch Museum in front of dozens of tourists last August.
But he reiterated police were confident of solving that theft too.
source, as above,: Reuters.