A Pablo Picasso sketch was stolen from a house near Mexico City.
The painting, a sketch of a man's face, was taken before dawn on Sunday from a house in the suburb of Tlalnepantla, said the official, who was not authorized to give his name. The owner told police the sketch was located in a portfolio that also contained a certificate of authentication.
He told police the sketch was worth US$650,000 (440,000 EUR).
The thieves also took a watch collection and a DVD burner.
Police had no leads in the case.
Russia's Ambassador to Belarus, Mikhail Babich, said that Moscow would treat any military intervention in the affairs of Belarus as an attack on Russia