NEW YORK - Two congressmen say Wal-Mart Stores Inc.'s probe of possible bribery in its operations in Mexico has expanded to its businesses in China and Brazil.

Last month, the world's largest retailer disclosed that it was expanding its probe beyond Mexico to include other countries, but it didn't identify them.

Democratic congressmen Elijah Cummings of Maryland and Henry Waxman of California say that lawyers for Wal-Mart told them that they were hired to review anti-corruption policies and operations in Brazil and China as well as Mexico. They say the lawyers recommended that Wal-Mart also review its operations in India and South Africa.

An email to a Wal-Mart spokesman was not immediately returned.

The New York Times reported in late April that Wal-Mart's Mexican unit allegedly paid millions of dollars in bribes to speed building permits and gain other favors. The Times said executives didn't notify authorities.