Threatening letters containing a suspicious white powder mailed to three U.S. financial institutions warn "it's payback time," according to a text released by the FBI on Thursday.
More than 50 letters, with identical or similar threatening language, were sent to Chase Bank offices, the Federal Deposit Insurance Corporation (FDIC) and the U.S. Office of Thrift Supervision, the FBI said.
"Steal tens of thousands of people's money and not expect repercussions (sic). It's payback time. What you just breathed in will kill you within 10 days. Thank (redacted) and the FDIC for your demise," said the text posted on the FBI Web site.