Letters containing suspicious white powder were found in the mail rooms of Manhattan banks and media organizations for a second day on Tuesday, according to ABC News.
City Hall and News Corp. were among the recipients of the letters as May Day protests took place around New York City, said ABC News. The letter for City Hall was opened in another building's mail room.
Bloomberg reported that the powder turned out to be cornstarch, according to the police.
Wells Fargo & Co. closed five bank branches in New York City on Monday afternoon after they received envelopes containing white powder, Fox News reported.
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.
More from GlobalPost: Hundreds of protesters converge on Wells Fargo annual meeting in San Francisco
A message that came in the envelopes said, "Just in case you needed some incentive to stop working we have a little surprise for you. Think fast you have seconds." It ended with: "F— THE BOSSES F— THE BANKS F— THE PIGS 'Happy May Day,'" according to ABC News.
According to Reuters, Ed Needham, a member of the Occupy Wall Street media team, said late on Monday, "It doesn't sound like something that we would do."
The branches would remain closed until police investigators gave 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 Wells Fargo. 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.
More from GlobalPost: Occupy May Day!
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