A Chicago Cubs’ security guard had an allergic response to an unidentified substance in a piece of postage on Tuesday. The Chicago Fire Department responded with a hazardous materials response.
Authorities later determined that there wasn’t a threat to public safety, Cubs spokesperson Julian Green said in an email. Chicago police sent a bomb and arson unit to the area and described the substance as a “skin irritant.”
The worker first encountered the unknown substance sent to the team’s front office in the 1100 block of West Waveland Avenue around 2:50 p.m., according to police. The guard found a “foreign substance contained in a small package as part of our mail screening process,” according to Green.
Green said that the unidentified worker, as a precaution, was transported to Advocate Illinois Masonic Medical Center and treated.
“During the initial safety assessment and investigation, some areas of the building were not accessible,” Green said. “We were allowed to continue with normal operations as we were not asked to shelter in place or evacuate the building.”
The police cleared the scene at 6:15 pm.