A painting stolen by the Nazis that was spotted in an Argentinian estate agent's advert has vanished, a prosecutor says following a raid on the home. 'Portrait of a Lady' by Giuseppe Ghislandi was featured hanging above a sofa inside a property near Buenos Aires, which was being sold by the daughter of a senior Nazi who fled Germany after World War Two. A police raid on the house this week, however, turned up no painting - but two weapons were seized, federal prosecutor Carlos Martínez told local media. Mr. Martínez said they were treating it as an alleged cover-up of smuggling, Argentinian daily Clarin reported. The newspaper reported that the furnishings had been rearranged and the picture was missing from the wall when they raided the property. Police suspect that the painting was removed after media reports surfaced about its existence. The artwork forms part of a larger collection belonging to Amsterdam art dealer Jacques Goudstikker, much of which was sold by the Nazis after his death. Ultimately, the search for the long-lost painting continues.