PUEBLO, Colo.—Authorities say 16 people in Pueblo have gone to a decontamination site after complaining of symptoms consistent with hazardous materials exposure.
A possible exposure to chemicals at a state printing shop prompted an hour-long lockdown at Colorado State University there Friday.
The incident happened at the Pueblo Memorial Airport Industrial Park.
Firefighters helped at the hospital with decontamination.
Pueblo County sheriff’s spokeswoman Lisa Shorter says the sickened people worked at the state Department of Personnel and Administration’s Integrated Document Solutions. County health officials are running tests to determine what made people ill.
CSU-Pueblo health and safety director Jason Turner says the school was put on lockdown as a precaution. Ventilation systems were switched to prevent outside air from being drawn into buildings. Summer classes began earlier this week.



