The FBI, U.S. Postal Inspectors and state and local authorities are investigating a series of letters sent to banks around the country.
Since Monday, more than 45 threatening letters have been received at financial institutions in at least 11 states. Utah is not among them, but the local FBI is looking for help.
These threat letters contain a powder substance. At this point, field tests on the powder have been negative.
Additional testing will be completed.
The FBI reminds the public that even sending a hoax letter is a serious crime.
The FBI and its law enforcement partners are asking for the public's help in identifying the subject(s) involved in this matter.