FRANKFURT—Deutsche Bank AG said it has suspended several Moscow-based traders over allegedly breaching anti-money-laundering rules, adding to the list of legal woes at Germany’s largest lender.

“We have placed on leave a small number of individuals from our Moscow operation pending the final results of an internal review. We are committed to participating in international efforts to detect and combat suspicious activities and we take strong action where we find evidence of misconduct,” Deutsche Bank said Wednesday. Germany’s...