Mystery Substance Confirmed: Not Ricin - KCBD NewsChannel 11 Lubbock

The Centers for Disease Control in Atlanta confirmed late Wednesday that a green substance sent to the Lubbock Chamber of Commerce is not the deadly toxin Ricin.

The substance was sent to Atlanta after preliminary test results by the City Health Department came out positive for the poison. The substance arrived at the Chamber last Tuesday in a letter from Brazil. Two days later a similar package showed up in Abilene. All tests by the CDC of the substance have turned up negative.

Information About How to Recognize Suspicious Package or Envelope This information supplements CDC’s recommendations for recognizing and handling suspicious packages or envelopes that were published as a CDC Health Advisory. More >>

In a press release sent late Thursday afternoon, the City said the FBI will now take over the investigation into who sent the letters.