Brazilian police on the weekend recovered a Picasso engraving stolen during a brazen daytime heist from a Sao Paulo museum last month, officials said.

One of the suspected robbers was arrested late Friday as he prepared to rob an automatic cash machine at a supermarket, police said.

A search of his place turned up Picasso's 1963 engraving "The Painter and His Model" hidden under the roof of his home. He admitted taking part in the July 12 heist of the Pinacoteca museum.

The arrested man was identified as Ueslei Teobaldo Barros, 30. A report on the website of the Estadao news group said Barros had been under telephone surveillance for three weeks.

Another Picasso engraving, "Minotaur, Drinker and Women" (1933), and two Brazilian paintings, "Women at the Window" (1926), by Emiliano Augusto Cavalcanti de Albuquerque Melo -- known better as Di Cavalcanti -- and "Couple" (1919), by the Lithuanian-born Brazilian artist Lasar Segall, have not yet been recovered.

Police are hunting Barros's three accomplices from the robbery, who are believed to be holding the other works.

Three of the gang had walked into the museum last month and gone straight to the floor where the works were hanging. After rounding up the guards, they put the works in bags and walked out of the building, where another member was waiting in a getaway car.

Sao Paulo's culture secretariat valued the works at one million reals (630,000 dollars).

The robbery recalled a December 20 theft in the Sao Paulo Museum of Art in which another Picasso and a painting by a well-known Brazilian artist, Candido Portinari, were stolen during closing hours.

Those paintings -- together valued at 56 million dollars -- were recovered less than three weeks later by police, who made two arrests.