Standard Chartered (STAN.L) was still reviewing if some of its clients were Iranian or Iran-connected entities in 2013, the Financial Times said, saying it had identified transactions that could put the bank at risk of more U.S. penalties. The London-listed bank’s shares were down 2.4 percent at 705.6 pence by 0300 EDT, underperforming a flat European banking index (.SX7P). Standard Chartered paid U.S. authorities $667 million in 2012 after breaking sanctions, including with Iran, and was last year fined another $300 million after shortcomings in its monitoring were uncovered.