Police said the two men forced their way into the home of the victim, who is in his 60s, bound his hands and threatened him with a knife before fleeing with three valuable paintings by famous Swedish artists, the Swedish news agency TT reported Friday.
Witnesses told the Aftonbladet newspaper the robbers were foiled when they were unable to fit the pilfered art into their getaway car, a red Ford.
Police said one of the paintings was recovered in the road and the other two were found in a nearby dumpster.
The homeowner was shaken, but uninjured, police said.
Investigators are trying to track down the suspects.