Oct. 26 (Bloomberg) -- Bank of New York Mellon Corp., the world’s largest custody bank, was sued by Massachusetts, which accused the bank of defrauding state pensions in foreign currency transactions.

To contact the reporter on this story: Charles Stein in Boston at cstein4@bloomberg.net

To contact the editor responsible for this story: Christian Baumgaertel at cbaumgaertel@bloomberg.net