Database of publications / RUSSIA TRIES TO EXPAND THE SCO'S MEMBERSHIP (by Stephen Blank 05/03/2008 issue of the CACI Analyst).

On December 27 2007, the same day as former Pakistani Prime Minsiter Benazir Bhutto was assassinated, Russia's Deputy Foreign Minister Alexander Losyukov suggested that the Shanghai Cooperaion Organization (SCO) expand its membership to include Iran and Pakistan.

http://www.cagateway.org/downloads/russia.pdf