The infamous sign Arbeit Macht Frei - work sets you free - has been recovered in a Polish port city leading to claims that it was set to be shipped out to a collector.
The sign, which appears above the entrance to the Auschwitz Camp, had been cut into three pieces for transportation.
It had been stolen from the former Nazi death camp on Friday.
The five suspects are being quizzed in Krakow, Poland.
image: Tulio Bertroni - Flickr