According to an article published by U.S. News & World Report on February 1, 2013 “The chief executive of TeliaSonera resigned Friday after an independent review on alleged bribery by the telecoms company found it had failed to conduct a proper background check on a partner Uzbek firm believed to be connected with the family of the country’s autocratic ruler.”
You can read the article on the U.S. News & World Report internet site.