The paintings, Picasso's "Tête" and Chagall's "L'homme en prière", were stolen from an art collector in Tel Aviv, Israel, in 2010 and are worth $900.000.

At the time of the theft, $680.000 worth of jewelry was stolen as well but only the paintings have been found.

Local police had started an investigation when a source informed them that a Belgian national was offering both artworks for sale.

The local prosecutor said the main suspect has been arrested.

(Reporting by Charlotte Van Campenhout; editing by Jonathan Oatis)