A painting by the French Impressionist, Camille Pissarro, which was to have been auctioned at Cleveland, Ohio, has been seized by FBI agents, following allegations that it was stolen twenty years ago.

It's not yet known who sent the painting to auction, but its last recorded owner was a Massachusetts collector, who reported the robbery in 1978.

Other works taken at that time, and still missing, include two paintings by Jean Renoir.

The auctioneers expected the Pissarro to sell for about half-a-million dollars.