Police in Oslo detained several people thought to be connected with Friday's government building bombing and subsequent shooting rampage, but soon released the individuals, according to a report.

No explosives were found at the location and those detained have been released, Oslo police said, according to Agence France Press. The raid took place the Sletteloekka district in the capital.

Police have nothing that could enable these people to be connected with acts.

About 6 people were detained in the area, neighbors told AFP.