Wells Fargo officials told Fox News that New York City Police Department investigators were on the scene.
"The safety of our customers and team members are our top concern and our focus is on ensuring premises are safe,” Wells Fargo spokeswoman Alexandra Ball said in a statement, according to Fox News. Ball did not say whether the envelopes contained any messages.
The branches will remain closed until police investigators give the all-clear, bank spokesman Ancel Martinez told Reuters. Among the locations that received the suspicious envelopes, according to Reuters: Third Avenue and 47th Street; Madison Avenue and 34th Street; and Broadway and 85th Street.
It’s been an eventful week for the bank. On April 24, hundreds of demonstrators marched in front of the Merchant's Exchange Building in San Francisco while the Wells Fargo’s annual shareholder meeting took place inside, to protest against executive pay, home foreclosures and other issues.
Banks in New York and San Francisco are also bracing for a day of protests, rallies and marches led by Occupy Wall Street on May 1.