In this undated photo, publicly provided by the State Museum of Majdanek, in Lublin, Poland, crematorium furnaces are pictured. On Monday Jan. 7, 2013 Polish prosecutors have opened an investigation into a Swedish artist's claim that he used the ashes of Holocaust victims to make a painting. The artist, Carl Michael Hausswolf, wrote on the website of a gallery in Lund, Sweden, last year that he made a painting using ashes that he took from crematorium furnaces in Majdanek, a former Nazi German death camp located in eastern Poland, on a visit there in 1989. (AP Photo/ HOPD/Piotr Maciuk, State Museum at Majdanek)
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