FILE PHOTO: A Wells Fargo branch is seen in the Chicago suburb of Evanston, Illinois, U.S. February 10, 2015. REUTERS/Jim Young/File Photo

(Reuters) - Wells Fargo & Co WFC.N has fired or suspended more than a dozen employees in its investment bank over alleged violations of the company's expense policy regarding after-hours meals, the Wall Street Journal reported on Thursday, citing people familiar with the matter.

The bank is investigating dozens of others ranging from analysts to managing directors in New York, San Francisco and Charlotte for doctoring receipts on dinners that they charged to the bank, the Journal reported, citing the people.