Suspicious mail sent to at least 5 congressional offices

The most recent letter was discovered Wednesday in a Senate state office, according to Senate Sergeant at Arms Terrance W. Gainer. The letters have tested negative for harmful substances and there have been no injuries, he said.

Gainer and House Sergeant at Arms Paul D. Irving informed all congressional offices via e-mail Wednesday to treat incoming mail with care and to be on the look-out for letters with “a suspicious powdery substance.”

“The author of these letters has indicated that additional letters containing a powdery substance will be arriving at more Senate offices and that some of these letters may contain an actual harmful material,” the e-mail said, adding that all of the suspicious letters included a return address in Portland, Ore.

via Suspicious mail sent to at least 5 congressional offices – 2chambers – The Washington Post.