The Saudi Arabian Monetary Agency (SAMA) has urged the public to replace the old Saudi riyal notes for 500 and 100 riyals with new ones which were issued in 2003. SAMA said the old notes would be valid until all of them were withdrawn from the market. "The old notes will be accepted as official currency and will be used side by side with the new ones," a SAMA statement said. It said SAMA had completed the final phase of a process to replace the old notes with modified ones with enhanced security features. "SAMA urges the public to replace their old 500 and 100 Saudi riyal notes through SAMA offices and commercial bank branches all over the country," the statement added.