A Citi sign is seen at the Citigroup stall on the floor of the New York Stock Exchange, October 16, 2012. REUTERS/Brendan McDermid/File Photo Acquire Licensing RightsCompanies Citigroup Inc FollowNEW YORK, Nov 22 (Reuters) - A top Citigroup (C.N) executive asked employees to speak up if they see inappropriate behavior after a managing director sued the company this week, alleging she was sexually harassed by a manager in equities. "No colleague should ever be discriminated against or harassed," Andy Morton, Citigroup's global head of markets, wrote in the memo sent on Tuesday, which referenced a recently filed lawsuit. "Part of everyone's role in creating a culture of the highest standards involves stepping in at the moment we see something wrong," Morton wrote. "If you experience or witness inappropriate behavior, you can raise your concerns through official channels without fear of retaliation," including with managers, human resources or the company's ethics hotline.

---

Persons: Brendan McDermid, Andy Morton, Citigroup's, Ardith Lindsey, Mani Singh, Lindsey, Singh, Lindsey's, Morton, Tatiana Bautzer, Lananh Nguyen, Daniel Wallis Organizations: Citi, Citigroup, New York Stock Exchange, REUTERS, Bloomberg, North America Markets, Thomson Locations: New York