Ricin Found in University of Texas Dorm (UPDATED)

Since this story was originally reported, additional infomation has been uncovered.  Read Powder Found at University of Texas Not Ricin for updates.

A lumpy powder discovered in the University of Texas’ Moore-Hill dormitory tested positive on Friday for the potentially deadly chemical ricin, CNN reports.

Rhonda Weldon, a campus police spokesperson, told CNN the origin of the powder is unknown.

University health officials said they were concerned with the chemical’s presence.

A number of students may have been exposed to the ricin, but none have shown any the signs of illness commonly associated with exposure, such as respiratory problems, fever, coughing fits and hot flashes, according to CNN.

Ricin is manufactured from castor bean extract into a powder, mist or a rock-like form which can then be added to food and drink, injected, or sprayed as an aerosol, CNN reports.

The dorm was evacuated and sanitized before students were allowed to return, according to CNN.

For related coverage, read Biodetection and Handle With Care. 

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