Pan Am Games to replace some medals

MEXICO CITY -- The organizing committee of the 2011 Pan American Games in Guadalajara say any faulty medals will be replaced after several athletes complained that their prizes had faded in color, particularly the bronze medals.

The Games organizers say they have asked the national Olympic committees that took part to report any problems so the defective medals can be replaced "immediately."

The Mexican Mint (Casa de Moneda), which was responsible for producing the medals, acknowledges there were some defects.

A statement from the Mint says the medals, made of a copper base, are "highly susceptible to oxidation."

Mexican newspaper Reforma said Saturday that at least 17 athletes had complained, while some Brazilian competitors had also reported problems.