WASHINGTON (AP) - At least 30 letters containing suspicious powder have been mailed to Chase banks and federal banking regulators' offices in nine cities, but so far they appear to be harmless.
The FBI says at this point, field tests on the powder have been negative.
A law enforcement official says the letters were mailed to Chase bank branches in or near Atlanta; Chicago; Columbus, Ohio; Dallas; Denver; Newark, N.J.; New York City; Oklahoma City; and Washington.
The official says the letters all appear to be from the same source and were sent from Texas.
A city official in suburban Chicago, where two letters showed up at a Chase credit card processing center, says they were mailed from Amarillo.
The U.S. Postal Service and state and local officials are also investigating.
No injuries are reported.
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