Brazil central bank calls auction to buy dollars

SAO PAULO, Sept 30 (Reuters) - Brazil's central bank offered to buy dollars on the spot foreign exchange market on Wednesday as part of an ongoing effort to boost international reserves and soak up greenbacks pouring into the economy.

The bank has bought nearly $14 billion on the spot market since May 8, including $2.63 billion in August and $3.24 billion this month to Sept. 25, to soak up dollar liquidity and prevent further appreciation of Brazil's currency, the real.

The real BRBY traded 1.56 percent stronger at 1.766 per U.S. dollar shortly after the central bank's announcement. (Reporting by Silvio Cascione; Writing by Luciana Lopez; Editing by James Dalgleish)