Citigroup Inc. told traders to speak up if they observe misconduct following a wave of media coverage of a female managing director suing the bank over alleged sexual assault and harassment by superiors.

“I would like to emphasize the importance of acting decisively if we see inappropriate behavior,” Andy Morton, Citigroup’s global head of markets, said in a memo to staff seen by Bloomberg. “Part of everyone’s role in creating a culture of the highest standards involves stepping in at the moment we see something wrong.”