OKLAHOMA CITY -- FBI and Fire officials are investigating the arrival of a potentially hazardous letter at the Chase Tower.
The alert was sent the authorities Thursday afternoon, after an employee noticed the suspicious envelope. After the numerous banks were hit Monday with identical envelops, workers were told what to look for.
"The letter was not opened. It was addressed with the return address of the same address that we received within the last week," said Bat. Chief Tony Aigo of the Oklahoma City Fire Department. "Talking to the postal inspector, they've had numerous amounts of letters like this."
The letter is postmarked from Texas, and could be part of the slew of threatening letters sent out this week to Chase Bank branches and other lending organizations.
"It was delayed in delivery, probably because they use their private courier service to pick the mail up and it's identical to the rest of the letters but for the address of the bank," postal inspector Paul Boyd said.
Postal inspectors screened the evidence and the investigation will continue into where the envelops came from.
The FBI released the contents of one of the letters, which was written in capital letters and includes at least one misspelling.
"Steal tens of thousands of people's money and not expect repercussions. It's payback time. What you just breathed will kill you within 10 days.
The Chase Tower is located at 100 N Broadway Avenue in downtown OKC.